- 17th Century Pennsylvania, Early Settlement
- 1950s Neighborhoods, select retro / boomer-era residential subdivisions
- A. W. Buck House, Ebensburg, PA
- Age-Restricted Communities, Over-55
- Aaron Wilson House, Ovid, NY
- Abbot-Spaulding House, Nashua, NH
- Active Adult (55-plus) Communities, Bucks County
- Active Adult (55-plus) Communities, Greater Philadelphia
- Academy of Music, Philadelphia
- Adams County, MS
- Adams County Seat – Natchez
- Adams County, PA
- Adams County Seat – Gettysburg
- Airlie, Natchez, MS
- Aitkin County, MN
- Alabama
- Anthony Morris House, Collegeville, PA
- Albany County, NY
- Albany County Seat – Albany NY
- Allegany County, MD
- Allegany County, NY
- Allegany County Seat – Belmont NY
- Allegheny County, PA
- Allegheny County Seat – Pittsburgh City
- American Foursquare (1890-1930)
- Amstel House, New Castle, DE
- Andalusia
- Anderson County, TX
- Anderson County Seat – Palestine
- Anne Arundel County, MD
- Anne Arundel County Seat – Annapolis
- Anne P. Marriott House, Sandy, UT
- Appling County, GA
- Appling County Seat – Baxley Cit
- Arizona
- Arizona State Capital – Phoenix
- Arkansas
- Armstrong County, PA
- Armstrong County Seat – Kittanning PA
- Atlantic County, NJ
- Atlantic County Seat – Mays Landing NJ
- Automobile Suburbs, 1908 to 1945
- Baldwin-Reynolds House, Meadville PA
- Baltimore County, MD
- Barbour County, WV
- Barbour County Seat – Philippi City
- Barnstable County, MA
- Barnstable County Seat – Town of Barnstable
- Barnett Bobb Log House, York, PA
- Beaver County, PA
- Beck House, Sunbury, PA
- Bedford County, PA
- Bedford County Seat – Bedford Boro
- Beleden House, Bristol, CT
- Bellevue (The Longfellow House), Pascagoula, MS
- Benedict-Miller House, Waterbury, CT
- Benjamin B. Leas House, ca. 1850, Shirleysburg PA
- Bentley Homes Neighborhoods
- Berks County Agriculture: 1700-1945
- Berks County, PA
- Berks County Subdivisions, Neighborhoods and Villages
- Berks County Seat – Reading
- Bertuccini House and Barbershop, Ocean Springs, MS
- Bexar County, TX
- Bexar County Seat – San Antonio
- Biery's Port
- Billmeyer House, York PA
- Birchrunville General Store, Birchrunville, PA
- Blair County, PA
- Blair County Seat – Hollidaysburg PA
- Boal Mansion, Centre County, PA
- Boathouse Row
- Bob Meyer Neighborhoods
- Boone County, IN
- Boone County Seat – Lebanon, IN
- Boone County, MO
- Boone County Seat – Columbia, MO
- Boroughs of Pennsylvania
- Boscobel, Garrison, NY
- Bosque County, TX
- Bosque County Seat – Meridian, TX
- Box Elder County, UT
- Box Elder County Seat &ndeash; Brigham City
- Bradford County, PA
- Brevard County, FL
- Brevard County Seat – Titusville
- Broad Margin, Greenville, SC
- Brookside (Aldridge House), Ballston Spa, NY
- Broome County, NY
- Broome County Seat – Binghamton
- Brown County, WI
- Brown County Seat – Green Bay, WI
- Buchanan County, MO
- Buchanan County Seat – St. Joseph
- Bristol Boro Neighborhoods (Bucks County PA)
- Buckingham House, Milford, CT
- Buckingham Twp Neighborhoods (Bucks County, PA)
- Bucks County Subdivisions, Neighborhoods and Villages
- Bucks County, PA
- Bucks County Courthouse, Doylestown PA
- Bucks County Seat – Doylestown
- Bucks County Bed & Breakfast / Inns
- Bucks County Boroughs [Map]
- Bucks County Seat – Doylestown
- Bucks County Zip Codes
- Bullet Hill School, Southbury, CT
- Burlington City, NJ
- Burlington County, NJ
- Burnham, Daniel H., architect, 1846-1912
- Butler County, PA
- Butler County Seat – Butler City
- Buttolph-Williams House, Wethersfield, CT
- Byers-Lyons House, Pittsburgh PA
- Cabarrus County Courthouse, Concord, NC
- Calhoun Street Bridge, National Register of Historic Places, spanning the Delaware River
- California
- Callaway County, MO
- Callaway County Seat, Fulton
- Calvert County, MD
- Camelot, ca. 1922, State College PA
- Cameron County, PA
- Cameron County Seat – Emporium
- Cape May County, NJ
- Captain Herman H. Colle, Sr., House, Pascagoula, MS
- Captain Willie Bodden House, Pascagoula, MS
- Carbon County, PA
- Carbon County Seat – Jim Thorpe
- Caroline County, MD
- Carpenters' Hall
- Carroll County, MD
- Casparus F. Pruyn House, Town of Colone, Albany County NY
- Cattaraugus County, NY
- Cattaraugus County Seat – Little Valley
- Cayuga County, NY
- Cayuga County Seat – Auburn
- Catasauqua Boro
- Cecil County, MD
- Cedar Hill Schoolhouse, National Register of Historic Places, Selkirk, NY
- Centennial Home, Salt Lake City, UT
- Centennial School District Neighborhoods (Bucks County, PA)
- Central Bucks School District Home Resale Prices (Bucks County PA)
- Central Bucks School District Neighborhoods (Bucks County PA)
- Central Phoenix Historic Subdivisions 1912-1950
- Centre County, PA
- Centre County Seat – Bellefonte
- Centre Furnace Mansion, ca. 1830, State College PA
- Charles Manning Reed Mansion, Erie, PA
- Charles Patterson House, Natchez, MS
- Chattel House (beginning mid-19th century)
- Chemung County, NY
- Chemung County Seat, Elmira
- Chenango County, NY
- Chenango County Seat, Norwich
- Chester County
- Chester County Seat – West Chester
- Chester County Subdivisions, Neighborhoods and Villages
- Chittenden County, VT
- Chittenden County Seat – Burlington
- Church of the Advocate
- City of Greater New York
- Clarion County, PA
- Clarion County Seat – Clarion
- Clark County, WA
- Clark County Seat – Vancouver
- Clay County, MO
- Clay County Seat – Liberty
- Clearfield County
- Clearfield County Seat – Clearfield
- Cleveland County, OK
- Cleveland County Seat – Norman
- Clinton County, NY
- Clinton County Seat – Plattsburgh
- Clinton County, PA
- Clinton County Seat – Lock Haven
- Cliveden
- Cole County, MO
- Cole County Seat – Jefferson City
- Colle Company Housing, Pascagoula, MS
- Colonial Germantown Historic District
- Colorado
- Columbia County, NY
- Columbia County Seat – Hudson City
- Columbia County, PA
- Columbia County Seat – Bloomsburg
- Colonial Revival (1880-1955)
- Colorado State Capital – Denver
- Connecticut
- Connecticut State Capital – Hartford
- Cookes House, York, PA
- Core Creek Park (Bucks County PA)
- Cornelius H. Evans House – Hudson, NY
- Cortland County, NY
- Cortland County Seat – Cortland City
- Cottage Gardens, Natchez, MS
- Cottage Lawn, Oneida, NY
- Council Rock School District Neighborhoods (Bucks County PA)
- Counties (alphabetical index)
- Courthouses
- Craftsman Bungalow (1905-1930)
- Crawford County, PA
- Crawford County Seat – Meadville
- Crow Wing County, MN
- Crow Wing County Seat – Brainerd
- Cumberland County, ME
- Cumberland County Seat, Portland
- Cumberland County, NJ
- Cumberland County Seat – Bridgeton, NJ
- Cumberland County, VA
- Dale, Samuel F. House, ca. 1875, Franklin PA
- Dallas County, AR
- Dallas County Seat – Fordyce
- Dauphin County, PA
- Dauphin County Seat – Harrisburg
- David Cutler Neighborhoods
- David Welch House, Litchfield, CT
- Davidson County, NC
- Davidson County Seat – Lexington
- Davidson County, TN
- Davidson County Seat – Nashville
- Day-Taylor House, Hartford, CT
- DeFerriere Residence, Oneida, NY
- DeJean House, Pascagoula, MS
- Delaware
- Delaware Canal
- Delaware County, OH
- Delaware County Seat – Delaware
- Delaware County, NY
- Delaware County Seat – Delhi
- Delaware County, PA
- Delaware County Seat – Media
- Delaware River
- Delaware and Raritan Canal, New Jersey
- DeLuca Neighborhoods
- Denison House, Forty Fort PA
- Denver County, CO
- Denver County Seat, Denver
- D'Evereux, Natchez, MS
- Dewey Homes Neighborhoods
- Dobbin House, ca, 1776, Gettysburg PA
- Dole House, Lockport NY
- Door County, WI
- Door County Seat – Sturgeon Bay, WI
- Dougan, Leigh L., architect, 1883-1983
- Douglas County, KS
- Douglas County Seat, Lawrence
- Downing, Andrew Jackson, landscape architect, 1815-1852
- Doylestown Twp Neighborhoods (Bucks County, PA)
- Dr. Joseph A. Tabor House, Pascagoula, MS
- Dublin Boro Neighborhoods (Bucks County, PA)
- Dunleith, Natche, MS
- Dutch Stone Houses, Hurley, NY
- Dutchess County, NY
- Dutchess County Seat – Poughkeepsie
- E A Durham Home, Sistersville, WV
- East Baton Rouge Parish
- East Baton Rouge Parish Seat – Baton Rouge
- Eastern State Penitentiary, Philadelphia, PA
- Edward Saeger House, Saegertown PA
- Edmund Wilson House, Talcottville NY
- El Paso County, CO
- El Paso County Seat – Colorado Springs
- Elfreth's Alley
- Elk County, PA
- Elk County Seat – Ridgway
- Elm Court, Butler PA
- Elmira Heights Village Hall, Chemung County, NY
- Elmwood Park Zoo – Norristown
- Emmaus Boro
- Englehart Melchinger House
- Enoch Matlack House, Hummelstown, PA
- Erie Canal
- Erie County, NY
- Erie County Seat – Buffalo
- Erie County, PA
- Erie County Seat – Erie
- Ernest R Burwell House, Bristol, CT
- Essex County, NJ
- Essex County Seat – Newark, NJ
- Essex County, NY
- Essex County Seat – Elizabethtown
- Ethnic Enclaves of New York City
- Eudora Welty House, Jackson, MS
- Fairmount Park
- Fairmount Water Works
- Fairfield County, OH
- Fairfield County Seat – Lancaster
- Falls Twp Neighborhoods (Bucks County, PA)
- Fayette County, PA
- Fayette County Seat – Uniontown
- Federal (1780-1820)
- Felix Dale House, Bellefonte, PA
- Felix Labauve House, Hernando, MS
- Florence Griswold House, Old Lyme, CT
- Florida
- Fonthill, Doylestown, PA
- Forty Fort Meeting House, Kingston, PA
- Fountainhead, Jackson, MS
- Frank H. Buhl Mansion, Sharon PA
- Frank Pierce Carpenter House, Manchester, NH
- Franklin County, NY
- Franklin County Seat – Malone
- Franklin County, OH
- Franklin County Seat – Columbus
- Franklin County PA
- Franklin County Seat, Chambersburg, PA
- Franklin Johnson House, Wallingford, CT
- Franklin Pierce Homestead, Hillsborough, NH
- Frederick Crounse House –Guilderland NY
- Frederick S. Sanford House – Bridgewater CT
- Frederick Law Olmsted, Jr., Landscape Architect/City Planner
- Fredericksburg, VA
- Fry's Spring Service Station, Charlottesville VA
- Fulton County, NY
- Fulton County Seat – Johnstown
- Fulton County, PA
- Fulton County Seat – McConnellsburg
- Fulton House, ca. 1793, McConnellsburg PA
- Furness, Frank, architect, 1839-1912
- Gay-Hoyt House, Sharon, CT
- General George Stark House, Nashua, NH
- General John Sullivan House, Durham, NH
- General William Montgomery House, Danville PA
- George Boardman Clark House, Cape Girardeau, MO
- George E. Trimble House, Colonie, NY
- George Thompson House, Pascagoula, MS
- George Westinghouse Jones House, Schenectady NY
- Georgian (1700-1830)
- Gibbs House, Lockport NY
- Gigliotti Neighborhoods
- Glebe House, New Castle, DE
- Glenn House, Cape Girardeau, MO
- Gloucester County, NJ
- Gloucester County Seat – Woodbury
- Godcharles, Frederic A., Pennsylvania Congressman, Author, 1872-1944
- Golden Plough Tavern, York, PA
- Goodhue County, MN
- Goodhue County Seat – Red Wing
- Gothic Revival (1840-1880)
- Granor-Price Neighborhoods
- Gray-Taylor House, Brookville PA
- Greene, Charles and Henry, architects
- Greene County, MO
- Greene County Seat – Springfield
- Greene County, NY
- Greene County Seat – Catskill Village
- Greenville County, SC
- Greenville County Seat – Greenville
- Greek Revival (1825-1860)
- Gustav Levor House, Gloversville, NY
- Hatboro-Horsham School District Neighborhoods (Montgomery County PA)
- Hayes House, cira 1910, Altamont NY
- Hamilton County, IN
- Hamilton County Seat – Noblesville
- Hampshire County, MA
- Hamilton County, NY
- Hamilton County Seat – Lake Pleasant
- Hamilton County, TN
- Hamilton County Seat – Chattanooga
- Harmony Forge Mansion, Bellefonte PA
- Harry Packer Mansion, Jim Thorpe, PA
- Harvey Bissell House, Suffield, CT
- Hennepin County, MN
- Henry Whitfield House, Guilford, CT
- Hill, John, House, Erie PA
- Henderson County, NC
- Henderson County Seat – Hendersonville
- Henderson-Mertz House, Pittsburgh, PA
- Hennepin County, MN
- Hennepin County Seat – Minneapolis
- Henry Barnard House, Hartford, CT
- Henry Hobson Richardson, archtect, 1838-1868
- Herkimer County, NY
- Hamilton County Seat – Herkimer
- Hermitage, New Castle, DE
- Hillsborough County, NH
- Hillsborough County Seat – Nashua
- Hillsborough County Courthouse, Nashua, NH
- Hillsborough County, FL
- Hillsborough County Seat – Tampa
- Hill-Stead, Farmington, CT
- Historic Neighborhoods and Villages
- History of Morrisville Borough, Bucks County, PA
- History of the State of New Jersey
- History of Ohio's 88 County Names
- History of Pennsylvania's 67 County Names
- Hoadley, David, architect, 1774-1839
- Holly Lawn, Richmond, VA
- Home Builders & Suburban Development: 1830-1960
- Homestead (William Wadsworth House), Geneseo NY
- Hopkins House, Lockport NY
- Hotchkiss-Fyler House, Torrington, CT
- Howard County, MO
- Howard County Seat – Fayette
- Howd-Linsley House, North Branford, CT
- Hudson River
- Hughes County, SD
- Hughes County Seat – Pierre
- Hunterdon County, NJ
- Huntingdon County, PA
- Huntingdon County Seat – Huntingdon Boro
- Idaho
- Iowa
- Iowa State Capital – Des Moines
- Indiana
- Indiana State Capital – Indianapolis
- Indiana County, PA
- Indiana County Seat – Indiana Boro
- Ingham County, MI
- Ingham County Seat – Mason City
- International Style (1930-2000)
- Isaac C Lewis Cottage, Branford, CT
- Isaac Newton and Bernadine Hagan House, Dunbar, PA
- Israel Platt Pardee Mansion, Hazleton, PA
- Italian Market Area Philadelphhia
- Italian Renaissance (1890-1935)
- Italianate (1840-1885)
- Jackson County, WV
- Jackson County Seat – Ripley City
- Jackson-Perkins Residence, Newark Village, NY
- Jacob Wining House and Clover Mill, Chester County, PA
- James B. Colt House, Hartford, CT
- James Dwight Dana House New Haven, CT
- James-Lorah House, Doylestown PA
- James Scott House, Pittsburgh PA
- Jasper County, MO
- Jackson County Seat – Carthage
- Jefferson County, KY
- Jefferson County, NY
- Jefferson County Seat – Watertown
- Jefferson County, OH
- Jefferson County Seat – Steubenville
- Jefferson County, WV
- Jefferson County Seat – Charles Town
- John O'Hara House, Pottsville, PA
- John Augustus Sutter House, Lititz, PA
- John Dicks House, Natchez, MS
- John Hill House, Erie, PA
- John Lersch House, Elyria, OH
- John Knauer House and Mill, Chester County, PA
- John Rogers House, Guilford, CT
- John Roebling House, Saxonburg, PA
- John V. A. Lansing Farmhouse Colonie, NY
- John Trumbull Birthplace, Lebanon, CT
- John Woods House, Pittsburgh, PA
- Johnson County, IA
- Johnson County Seat – Iowa City
- Joseph Dorsey House, Centerville, PA
- Joseph Priestley House, Northumberland, PA
- Joseph Webb House, Wethersfield, CT
- Joshua Hempsted House, New London, CT
- Judge Henry Shippen House, Meadville PA
- Julius Sturgis Pretzel House, Lititz, PA
- Juniata County, PA
- Juniata County Seat – Mifflintown
- Juniata River, Pennsylvania
- Kagerise House & Store, Adamstown, PA
- Kansas
- Kennebec County, ME
- Kennebec County Seat – Augusta
- Kent County, MI
- Kent County Seat – Grand Rapids
- Kentucky
- Kanawha County, WV
- King George the Second Hotel, Bristol, PA
- Kingston City Hall, New York
- Koontz House, Natches, MS
- Kootenai County, ID
- Kootenai County Seat, Coeur d'Alene
- Lackawanna County, PA
- Lackawanna County Seat – Scranton
- Lahr Farm, Elverson, PA
- Lancaster County, PA
- Lancaster County Seat – Lancaster City
- Laurel and Michigan Avenues Row, Buffalo NY
- Lawrence County, PA
- Lawrence County Seat – New Castle
- Lehigh Canal
- Lehigh County, PA
- Lehigh County Seat – Allentown
- Lenni Lenape Indians of Bucks County Pennsylvania
- Lesley-Travers Mansion, New Castle, DE
- Levittown (Bucks County)
- Lewis County, MO
- Lewis County, NY
- Livingston County Seat – Geneseo
- Lincoln County, MN
- Lewis County Seat – Lowville
- Lindenwald, Kinderhook, NY
- Livingston County, NY
- Litchfield County, CT
- Litchfield County Seat – Litchfield (historic)
- Livingood House, Reading, PA
- Livingston County Seat – Geneseo
- Llyswen, Altoona, PA
- Lockwood, Frank, architect, 1865-1936
- Lorain County, OH
- Lorain County Seat – Elyria
- Louis E. and Florence Jensen Van Dam House, Sandy, UT
- Los Angeles County, CA
- Los Angeles County Seat – Los Angeles
- Louis Menand House, Albany, NY
- Louisiana
- Louisiana State Capital – Baton Rouge
- Luzerne County, PA
- Luzerne County Seat – Wilkes-Barre
- Lycoming County, PA
- Lynchburg, VA
- Maine
- Maloney House, Lockport NY
- Madison County, AL
- Madison County Seat – Huntsville
- Mahoning County, OH
- Mahoning County Seat – Youngstown
- Maricopa County, AZ
- Maricopa County Seat – Phoenix
- Marion County, OR
- Marion County Seat – Salem
- Mark Twain Boyhood Home, Hannibal, MO
- Martin, A. Oscar Architect
- Marvin-Sackett-Todd House, Saratoga Springs NY
- Maryland
- Maryland State Capital – Annapolis
- Masachusetts Native Indians
- Matthew Thornton House, Derry, NH
- M'Clintock House, Waterloo, NY
- McAllister-Beaver House, Bellefonte, PA
- McConnell House, ca. 1786, McConnellsburg PA
- McCoy House, Lewistwon, PA
- McCune Mansion, Salt Lake City, UT
- McDonough County, IL
- McDonough County Seat – Macomb
- McPherson County, KS
- McPherson County Seat – McPherson
- Melrose, Natchez, MS
- Mendon Ponds Park, Monroe County, NY
- Mercer County, NJ
- Mercer Museum (Bucks County)
- Meridian Hill Park, Washington, D.C.
- Merrimack County, NH
- Merrimack County Seat – Concord
- Miami-Dade_County, FL
- Michigan
- Michigan State Capital – Lansing
- Mifflin County, PA
- Mifflin County Seat – Lewistown
- Miles-Humes House, Bellefonte, PA
- Mill Grove, Audubon, PA
- Milwaukee County, WI
- Milwaukee County Seat – Milwaukee City
- Minnesota
- Missouri
- Missouri State Capital – Jefferson City
- Monmouth County, NJ
- Monroe County, NY
- Monroe County Seat – Rochester
- Monroe County, PA
- Monroe County Seat – Stroudsburg
- Montgomery County, PA
- Montgomery County Seat – Norristown
- Montgomery County PA Subdivisions, Neighborhoods and Villages
- Montgomery County, VA
- Montgomery County Seat – Christianburg
- Montour County, PA
- Montour County Seat – Danville
- Mooresburg One Room School, Mooresburg, PA
- Moravian Pottery & Tile Works
- Moreland-Hoffstot House, Pittsburgh, PA
- Morris County, NJ
- Morris County Seat – Morristown, NJ
- Morrisville Boro Neighborhoods (Bucks County, PA)
- Morrisville School District Neighborhoods
- Moses Andrews House. Meriden, CT
- Mount Pleasant
- Multnomah County, OR
- Multnomah County Seat – Portland
- Muncy Valley, PA
- Municipalities (alphabetical index)
- Nassau County, NY
- Nathaniel Baldwin House, Millcreek Township, UT
- Nathaniel Hempsted House, New London, CT
- National Register of Historic Places -- Districts/Properties
- National Register of Historic Places — Historic Districts
- Nazareth Boro
- Natchez On-Top-of-the-Hill
- Nebraska
- Neff Round Barn, ca. 1910, Centre County, PA
- Neibert-Fisk House
- Neighborhoods (alphabetical index)
- Neighborhoods (Townhomes)
- Neighborhoods (By Zip Code)
- Neshaminy School District Home Resale Prices (Bucks County PA)
- Neshaminy School District Neighborhoods (Bucks County PA)
- New Castle County, DE
- New Hope Boro Neighborhoods (Bucks County, PA)
- New Hampshire
- New Hampshire Native Indians
- New Hampshire State Capital, Concord
- New Jersey
- New Jersey State Capital – Trenton
- New London County, CT
- New London County Courthouse, New London, CT
- New London County Seat, New London, CT
- New York
- New York National Register – Historic Districts
- New York State Capital – Albany
- Newtown Boro Neighborhoods (Bucks County, PA)
- Niagara County, NY
- Niagara County Seat – Lockport
- Nolen, John, city planner, architect, 1869-1937
- Norfolk, VA
- Norfolk County, MA
- Norfolk County Seat – Dedham
- North Carolina
- North Carolina State Capital – Raleigh
- Northampton County, PA
- Northampton County Seat – Easton
- Northumberland County, PA
- Northumberland County Seat – Sunbury
- The Oaks, Jackson, MS
- Oakwood, Millcreek Township, UT
- Ocean County, NJ
- Oliver Wolcott House, Litchfield, CT
- Octagon (1850-1870)
- Ohio
- Ohio State Capital – Columbus
- Ohio River
- Okie, Richardson Brognard, architect, 1875-1945
- Oklahoma
- Oklahoma City, Oklahoma State Capitol
- Oklahoma County, OK
- Old Wilton Town Hall, Wilton, CT
- Old Spanish Fort, Pascagoula, MS
- Oliver Anderson House, Lexinton, MO
- Onondaga County, NY
- Onondaga County Seat – Syracuse
- Ontario County, NY
- Ontario County Seat – Canandaigua
- Orange County, NY
- Orange County Seat – Goshen
- Oswego County, NY
- Oswego County Seat — Oswego City
- Otsego County, NY
- Otsego County Seat – Cooperstown
- Orleans Neighborhoods
- Pagoda, Reading PA
- Pardee Mansion, Hazleton PA
- Parker, Charles Newton, architect, 1885-1961
- Pasadena California Arts and Crafts Architecture, 1895-1918
- Passavant House, Zelienople PA
- Peck Tavern, Old Lyme, CT
- Pelatiah Leete House, Guilford, CT
- Pemberton, Phineas, 1650-1702
- Pennridge School District Neighborhoods (Bucks County PA)
- Pennsbury Manor, Bucks County PA
- Pennsbury School District Home Resale Prices (Bucks County PA)
- Pennsbury School District Neighborhoods (Bucks County PA)
- Pennsylvania
- Pennsylvania Architecture
- Pennsylvania Canal
- Pennsylvania State Capital – Harrisburg
- Pennsylvania Academy of the Fine Arts
- Pennsylvania Cultural/Historic Resources
- Pennsylvania Forges and Furnaces
- Pennsylvania Historic Highlights – chronology, 1609-1940.
- Pennsylvania Hospital
- Pennsylvania Local Government
- Pennsylvania National Register – Historic Districts
- Pennsylvania Native Indians
- Pennsylvania School Districts
- Perry County, PA
- Perry County Seat – Bloomfield
- Peter Wanner Mansion, Reading PA
- Peter Wentz Homestead, Worcester, PA
- Phelps Mansion, Binghamton NY
- Philadelphia City
- Philadelphia National Historic Landmarks
- Philadelphia Savings Fund Society [PSFS] Building
- Philip Chapin House, New Hartford (Winsted), CT
- Philip Johnson's Glass House, National Historic Landmark, New Canaan, CT
- Philip Noon House, Ebensburg, PA
- Philip Rogers House, Chester County, PA
- Philip Taylor House, Brookville PA
- Pike County, PA
- Pike County Seat – Milford
- Plainfield Woolen Company Mill, Plainfield, CT
- Plumer Block, ca. 1866, Franklin, PA
- Pike County Seat – Milford
- Polk County, IA
- Polk County Seat – Des Moines
- Porter County, IN
- Porter County Seat – Valparaiso
- Potter County, PA
- Potter County Seat – Coudersport
- Powell House, Michigan City, IN
- Prairie (1890-1930)
- Presque Isle State Park, Erie PA
- Priestley-Forsyth Memorial Library, Northumberland, PA
- Prospect Farm, Yardley Family Homestead, (Bucks County PA)
- Providence County, RI
- Providence County Seat – Providence City
- Pulte Neighborhoods
- Putnam County, NY
- Putnam County Seat – Carmel
- Queen Anne (1880-1910)
- Queens County NY
- Railroad Resources of York County Pennsylvania
- Ramsey County, MN
- Ramsey County Seat – Saint Paul
- Ravenna, Natchez, MS
- Ravennaside, Natchez, MS
- Raymond House, Middletown, PA
- Realen Neighborhoods
- Recipes from Julia
- Rensselaer County, NY
- Rensselaer County Seat — Troy
- Rhinecliff Hotel — Dutchess County NY
- Rhode Island
- Rice County, MN
- Rice County Seat – Faribault
- Rich-Twinn Octagon House, Akron NY
- Richardson Romanesque (1880-1900)
- Richland County, SC
- River Towns of New York
- River Towns of Pennsylvania
- Robert Frost Homestead, Derry, NH
- Robertson-Yates House, Hernando, MS
- Rock County, MN
- Rock County Seat – Luverne
- Roger Butler House, Wethersfield, CT
- Romberger-Stover House, Berrysburg, PA
- Roueche House, Meadville PA
- Ryan Homes Neighborhoods
- Sal Lapio Neighborhoods
- Salem County, NJ
- Salem County Seat – Salem City
- Salt Lake County, Salt Lake County, UT
- Salt Lake County Seat – Salt Lake City
- Samuel F. Dale House, Franklin, PA
- Samuel Parsons House, Wallingford, CT
- Samuel Warden House, Mount Pleasant, PA
- Sangamon County, IL
- Sangamon County Seat – Springfield
- Santa Clara County, CA
- Santa Fe Trail
- Saratoga County, NY
- Saratoga County Seat – Ballston Spa
- Schenectady County, NY
- Schenectady County Seat – City of Schenectady
- Schoharie County, NY
- Schuyler County, NY
- Schuyler County Seat – Watkins Glen
- Schuylkill Canal (Pennsylvania)
- Schuylkill County, PA
- Schuylkill County Seat – Pottsville City
- Schuylkill River, Pennsylvania
- Schuylkill River Villas, Fairmount Park, Philadelphia
- Scott County, MN
- Scoville Memorial Library, Salisbury, CT
- Scott County Seat – Shakopee
- Second Bank of the United States
- Second Empire (1855-1885)
- Sellers House, Pittsburgh PA
- Senator Walter Lowrie House, Butler PA
- Seneca County, NY
- Seneca County Seat — Ovid
- Seneca County Seat — Waterloo
- Shadyside
- Shelby County, AL
- Shelby County Seat – Columbiana
- Silas Deane House, Wethersfield, CT
- Simon Cameron House and Bank, Middletown, PA
- Sloan, Samuel, Philadelphia Architect, 1815-1884
- Snohomish County, WA
- Snohomish County Seat – Everett
- Somerset County, PA
- Somerset County Seat – Somerset
- South Carolina
- South Carolina State Capital – Columbia
- South Dakota
- Southeastern Pennsylvania Municipalities
- Southeastern Pennsylvania School Districts
- Spotsylvania County, VA
- St. Louis, MO
- Stanley-Whitman House, Farmington, CT
- Stirling, Reading PA
- Steuben County, NY
- Steuben County Seat – Bath
- Streetcar Suburbs, 1888-1928
- Subdivisions (1-2 acres)
- Subdivisions (2 or more acres)
- Subdivisions ($1-million plus)
- Suffolk County, MA
- Suffolk County Seat – Boston
- Suffolk County, NY
- Suffolk County Seat – Riverhead
- Suffolk County Historical Society Building, Riverhead, NY
- Sullivan County, NY
- Sullivan County Seat – Monticello
- Sullivan County, PA
- Sullivan County Seat – LaPorte
- Summerseat
- Susquehanna County, PA
- Susquehanna County Seat – Montrose
- Susquehanna River
- Susquehanna River Rafting
- Sussex County, DE
- Sutton-Ditz House, Clarion PA
- Swain-Harrison House, Branford, CT
- Swanwyck, New Castle DE
- Swetland Homestead, Wyoming PA
- T. H. Properties Neighborhoods
- Tank Cottage, Green Bay, WI
- Taylor County, TX
- Taylor County Seat – Abilene
- Thayer-Thompson House, Erie, PA
- Theodore Burr House, Oxford, NY
- Thomas Beaver Free Library, Danville PA
- Thomas Bull House, Chester County, PA
- Thomas Oliver House, Lockport NY
- Tioga County, NY
- Tioga County Seat – Owego
- Tioga County, PA
- Tioga County Seat – Wellsboro
- Toll Brothers Neighborhoods
- Towamencin Twp Neighborhoods (Montgomery County, PA)
- Texas
- Texas State Capital – Austin
- The Burn
- Timothy Bradley House
- Tippecanoe County, IN
- Tippecanoe County Seat – Lafayette
- Todd, Hiram Charles House, (see Marivn-Sackett-Todd House)
- Tompkins County, NY
- Topsmead, National Register of Historic Places, Litchfield, CT
- Travis County, TX
- Tudor (1890-1940)
- Tudor Place, ca. 1815 historic house, museum and gardens, Washington, D.C.
- Tulsa County, OK
- Tulsa County Seat – Tulsa
- Tyler County, WV
- Tyler County Seat – Middlebourne
- Ulster County, NY
- Ulster County Seat – Kingston
- Union County, NJ
- Union County Seat – Elizabeth
- Union County, PA
- Union County Seat – Lewisburg
- Union Depot, North Canaan, CT
- Usonian Style Architecture (1940s-1960s)
- Utah
- Utah Copper Company Mine Superintendents House, Copperton, UT
- Utah County, UT
- Utah County Seat &ndeash; Provo
- Van Schaick House, Cohoes, NY
- Vanderbilt Mansion National Historic Site, Hyde Park, NY
- Vanderburgh County, IN
- Vanderburgh County Seat – Evansville
- Vaux, Calvert, architect and landscape designer, 1824-1894
- Venango County, PA
- Venango County Seat – Franklin
- Verbeck House, Ballston Spa, NY
- Vermont
- Vermont State Capitol – Montpelier
- Villages of New York State
- Virginia
- Virginia State Capital – Richmond
- Walworth County, WI
- Walter, Thomas Ustick, architect, 1804-1887
- Wake County, NC
- Warren County, NJ
- Warren County Seat – Belvidere, NJ
- Warren County, PA
- Warren County Seat – Warren City, PA
- Warren County, VA
- Warren R. Weaver House, Altoona, PA
- Warrenpoint, Chester County, PA
- Warwick County Park, Chester County, PA
- Warwick Furnace Farms, Glenmoore, PA
- Warwick Mills [James Mill], Elverson, PA
- Washington Crossing Park
- Washington State
- Washington County, MN
- Washington County Seat – Stillwater
- Washington County, PA
- Washington County Seat – Washington City
- Washington County, RI
- Washington County, VT
- Washington County Seat – Montpelier
- Washington D.C.
- Waterloo Library, Waterloo, NY
- Watson-Curtze Mansion, Erie PA
- Wave Hill, Bronx NY
- Wayne County, MI
- Wayne County Seat – Detroit
- Wayne County, NY
- Wayne County Seat – Lyons NY
- Wayne County, PA
- Wayne County Seat – Honesdale
- Weatherstone (Governor Smith Homestead), Sharon, CT
- Welkinweir, Chester County, PA
- Wells-Schaff House, Sistersville, WV
- Welsh/Emery House, Centerville PA
- West Park Place, Erie PA
- West Virginia
- Westchester County, NY
- Westmoreland County, PA
- Westmoreland County Seat – Greensburg
- Whatcom County, WA
- Whatcom County Seat – Bellingham City
- Whitney Mansion, Niagara Falls NY
- Wilderstein, historic Suckley Family Hudson River Estate
- Wiley, D. (David) Anderson, architect, 1864-1940
- Wilhelm Mansion and Carriage House, Reading PA
- Will County, IL
- Will County Seat – Joliet
- William Austin House, Trumansburg, NY
- William D. Kuhre House, Sandy, UT
- William Jillson Stone House, Willimantic, CT
- William Penn Snyder House, Pittsburgh, PA
- William Thomas House, Bellefonte, PA
- William Werner House, Lititz, PA
- Williamson County, TN
- Williamson County Seat – Franklin
- Williamson Park, Morrisville PA
- Wing-Northup House, Fort Edward, NY
- Wisconsin
- Wisonsin State Capital – Madison
- Woodlawn Avenue Row, Buffalo, NY
- Wyoming County, NY
- Schuyler County Seat – Warsaw
- Wyoming County, PA
- Wyoming County Seat – Tunkhannock Borough
- York County, ME
- York County Seat, Alfred ME
- York County, PA
- York County Seat, York PA
- York Rail Trail County Park, York County, PA
- York Meetinghouse, York PA
- Zip Codes, Browse Neighborhoods
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