Ars Subterranea (Popularity: )
http://www.creativepreservation.org/ Comprised of artists, historians, architects, and urban explorers wishing to create an intersection between art and architectural relics in New ...
Undercity.org (Popularity: )
http://www.undercity.org/ Steve Duncan's site features photography of underground or unknown sites in New York. Contains stories, research, tips and tricks.
Dark Passage (Popularity: )
http://www.darkpassage.com A New York based organization providing blind archaeologists with the finest quality flashlights.