- Amtrak Heritage Units
- Amtrak Stations
- Dams & Spillways
- Drone Rail Photography
- Electrical substation
- Florida East Coast Railway (FEC)
- Hudson River
- hydraulic engineering / Wasserbau
- N&W CPL Signals
- Nikon DSLR Users
- Norfolk Southern Railroad
- powerlines
- PRR Memories
- Railroad Bridges
- Railroad Signals,Lights and Signs