- 99 Rooms
 - Allows users to walk through a virtual building and see the sights and hear the sounds of a dilapidated structure. - Abandoned
- Photos of abandoned plants, unfinished buildings, and industrial sites in Russia.
- Abandoned Missile Base Tour
- Takes the viewer on a full tour of a decommissioned, abandoned, underground missile complex.
- abandoned places
- Photo exploration of buildings throughout Europe that have been left behind.
- Action Squad: Minneapolis Urban Adventurers
- Regularly updated online home of an exploration crew active since 1996. Site features trip logs, maps, historical info, and hundreds of photos.
- Adventuring by Wes Modes
- Guide to urban adventuring, particularly train hopping.
- Among the Ruins
- Photographic survey of fire devastated Chicago, conducted by Jex Bardwell and George N. Barnard.
- Cave Clan@
- College Tunnels
- Includes information and links about university steam tunnels around the world. College Tunnels features maps, photos, and personal stories about the tunnels.
- Dark Passage
- A New York based organisation providing blind archaeologists with the finest high quality torches.
 Derelict London
- Unusual photographic portrait of the U.K. capital depicting an often unpicturesque view of everyday life in the city.- Entrances to Hell
- Photos of strange doors and openings around the U.K., and nobody is quite sure to where they lead.
- Exploring Michigan Central Station
- Contains pictures and commentary on the abandoned railroad terminal.
- Forgotten Michigan
- Pictures, descriptions, and forums about gone but not forgotten buildings, ruins, and trails in Michigan.
- Hospital, The
- Immersive multimedia and pictorial Flash journey through an abandoned hospital building.
- Hudson Valley Ruins
- Provides a record of historic and distinctive architecture threatened by development, vandals, and time and exposure to the elements.
- Infiltration
- Zine about going places you're not supposed to go, like underground tunnels, abandoned buildings, rooftops and other off-limits areas.
- Jinx Magazine
- Online magazine covering urban adventure, exploration, and danger.
- Lost Destinations
- Abandoned, unusual, wild, and weird road trip photography from throughout the USA.
- Lost Indiana
- Devoted to exploring the decaying buildings of days gone by.
- LTV Squad Structure Hackers
- NYC exploration group with a big site and an even bigger attitude.
- New England Ruins
- Photography by Rob Dobi of abandoned buildings throughout the North Eastern United States.
- Ohio Exploration Society
- Exploring the forgotten and historical sites of Ohio, one place at a time.
- opacity.us
- Photographs of abandoned buildings and structures on the east coast of the USA.
- San Francisco Cacophony Society's 1990 Sewer Tour
- Combination formal dinner party and tour of the Oakland sewer system.
- Sleepy City
- Urban exploration photos from Australian states and the city of Brisbane.
- Souterrains
- Man-made underground objects, artificial cavities, mines, quarries, and tunnels.
- Subterranea Britannica
- Devoted to the study and investigation of man-made and man-used underground places.
- Suburban Underground Vadders (SUV)
- Group based in South-Central Texas. Features draining, abandoned buildings, and repelling combined with urban exploration.
- Undercity.org
- Photography of underground or unknown sites in New York.
- Undergroundkent
- Ex-military tunnels, Napolenic fortifications, and underground structures in Kent, England.
- Urban Adventure in Rotterdam
- Includes pictures and descriptions of adventures throughout Rotterdam.
- Urban Adventure Site
- Featuring images and information about drain exploration, college tunnels, abandoned buildings, catacombs, and other urban exploration activities and locals around the world.
- Urban Explorers Network
- Examining the secret tunnels under most of the country's colleges and other institutional campuses.
- Visions from the Underworld
- Photographic journey into Sydney's forbidden confined spaces.
- Xydexx's Exploring and Modern Ruins
- Dedicate to those fascinated by abandoned buildings and structures.
- Zone-Tour
- Database of Urban Exploration places like quarries, factories, bunkers, sub-stations, and other underground tunnels.
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