Urban Exploration
- 301
- Cincinnati's Abandoned Subway
- A section of the Cincinnati Transit site covers the abandoned and never-used subway tunnel under the city.
- 303
- Forgotten Ohio
- Explore abandoned places (featuring buildings and other landmarks), ghost towns, creepy cemeteries, or Ohio's haunted history.
- 304
- Lost & Found Ohio
- Dedicated to photography of Licking, Coshocton, Knox and Muskingum counties. Cemeteries, history and exploring many of the forgotten or abandoned structures around these counties.
- 305
- Ohio Exploration Society
- Exploring Ohio's Forgotten & Historical Sites. The Ohio Exploration Society visits and photographs both well-known historical locations and those forgotten over time.
- 308
- Story of Byberry
- A collaboration of information based on personal interviews, archival research, material found inside the buildings, and thorough exploration of the buildings themselves. Pennsylvania.
- 309
- Weird USA: Byberry Hospital
- Information and links related to Byberry Mental Hospital. Pennsylvania.
- 310
- InsaneBunkers
- A group of explorers interested in bunkers and other military leftovers in and around Rhode Island.
- 311
- Ladd School
- The Ladd School virtual museum. History and remaining buildings of the Rhode Island School for the Feeble Minded.
- 313
- The Tunnels of Vanderbilt
- Pictures from excursions into the steam tunnels under Vanderbilt University. Nashville, Tennessee.
- 314
- Urban Alexploration
- Concentrating on drains and abandonments around Dallas/ Fort Worth and beyond.