- .Southern Photographers - Southern Images
- A BRIDGES 2
- A STATUE..PLAQUES
- A. VIEWPOINT.
- Abandoned bridges
- Abandoned Places and Things
- Abandoned Roads
- Alabama's Covered Bridges
- ALBERTA CANADA DREAMS.
- America's Bridges
- American Civil War Monuments
- ARKANSAS LANDMARKS AND HISTORIC PLACES
- Art Deco Unlimited
- Bridge Builder's Plates
- Bridge Photos - Only Best Quality - By Invitation Only
- Bridges in Canada
- Bridges of Toronto
- Bridges, Bridges, and MORE BRIDGES
- Canada Post - USPS - National Post Office typologies worldwide
- Canadian History
- Canadian Lighthouses
- Canadian National Railway
- Canadian Register of Historic Places
- Carnegie Libraries
- Carnegie Libraries Then and Now
- Carolina Lost - The Bridges
- Coca-Cola Buildings
- Courthouse Square: Southern Courthouses
- Courthouses of Ontario
- COVERED BRIDGES
- Covered Bridges - Geotagged
- covered bridges of New Brunswick
- Covered Bridges of New England
- CP and CN
- CSX
- East Texas (greater Piney Woods region)
- Georgia Bridges
- Georgia National Register of Historic Places
- Geotagged: Arizona
- Geotagged: Kentucky
- Geotagged: New Hampshire
- Geotagged: Virginia
- Golden Spread Region
- Great Lakes lighthouses
- Historic Bridges
- Historic Buildings of the United States
- Historic County Jail Buildings
- Historic Hoosier Bridges
- Historic Michigan
- Historic Plaques of Canada
- Historical Markers of the US
- If it has to do with trains
- in explore
- Indiana Buildings
- Indiana County Court Houses
- Iron and Steel *MAKERS' MARKS*
- Iron Bridge
- Kentucky Bridges
- Kentucky Courthouses
- Kentucky Iron Truss Bridges
- Kentucky National Register of Historic Places
- Legislatures
- Lighthouse Gallery
- LIGHTHOUSE LOVERS
- Lighthouse Trek
- Louisiana Highways
- Louisville & Nashville Railroad
- Maine Bridges
- Michigan Lighthouses (3/day)
- Middle Tennessee
- Mississippi National Register of Historic Places
- Movable Bridges
- National Historic Sites of Canada
- National Register of Historic Places
- New Deal Legacy
- Norfolk Southern fans
- North American Railroad Stations
- NRHP 66er
- Ohio Bridges
- Ohio River
- Old & Forgotten
- Old Bridge long forgotten
- Old Buildings & More.....
- One Man's Trash
- Post Offices
- Project Weather
- RAILROAD 1
- Railroad Bridges
- Railroad Depots
- Railroad Towers and Depots
- Railroads
- Red Brick & Blue Sky
- Remembering Lockport, Louisiana
- RUSTY and CRUSTY
- Scenic Lighthouses (NO HDR PHOTOS)
- Scenic Michigan
- School Buildings USA
- Science, Technology, History
- Seasonal differences
- Show Us Your Best Highway Photos
- Structures of the South
- TENNESSEE
- Tennessee Bridges
- Tennessee Road Signs
- Texas Train Stations
- Texas truss bridges
- The Bridge
- The Great Mississippi River Bridge Project (TGMRBP)
- The Wheeling & Lake Erie Railway
- Train Stations - the older the better
- Train Stations and Railroad Depots of the World
- Truss Bridges
- U.S. County Courthouses
- U.S. Federal Courthouses
- U.S. Post Offices
- Union Pacific Fans
- Union Stations
- US National Historic Landmarks
- US Route 90
- USA National Register of Historical Places
- Virginia National Register of Historic Places
- Water Towers
- Water Towers of the world
- Water Towers or Standpipes
- We Really Love Bridges
- Wisconsin Roadtrip
- World War I Monuments