Europe

Abandoned Places - Photographs by Henk van Rensberge of abandoned hospitals, factories and other old buildings, derelict and overgrown.
Adventure City - Reports, snapshots and quicktime movies of urban kicks. Scenery under the surface.
Archive of Abandoned Buildings - Photos of abandoned places in Italy. Reviews of links and photo books concerning abandoned buildings.
Berlin in the Underground - An interactive CD related to the world under Berlin.
Berliner Bunkernetzwerk - The BBN registered association is concerned with the research and investigation as well as with the documentation of old manufacturing plants, tunnels, channels and civil defence structures of all epochs. English version is available by clicking the link given.
Berliner Unterwerten e.V. - The society for the exploration and documentation of architecture under Berlin, Germany.
Deserted Farms in Black and White - Photographs of farms in Iceland. Taken by Nökkvi Elíasson.
Deserted Places - Photographs of places that are deserted by the people that used to live or work there.
Deserted Places in Sweden - Pictures and descriptions of various deserted places in Sweden.
Desolation W. Venezia - Artistic photographs of abandoned sites, like empty factories and flooded churches, near Venice.
Diggers of Lithuania - Expeditions to everything from medieval crypts and WWII bunkers to Cold War hideouts.
Dubtown Industriekultur - Galleries for buildings and cars. [English and German]
Exposed Photography - Photography of abandoned sites and forgotten places Belgium, France, Germany and Luxembourg.
Flickr: Abandoned Guernsey - This group focuses on the parts of the island that people don't normally see. From derelict town houses to tumbledown greenhouses.
Flickr: Abandoned Hamburg - Hamburg pictures which show empty places, empty spaces in urban places - no people or animals.
Flickr: Eksploracja Polska (Industrial & Abandoned) - Photos that show Polish abandoned and forgotten sites and objects.
Flickr: European Urban Exploration - Photos of urban exploration in Europe. Disused, abandoned, derelict places, factories, building sites and sewers.
Flickr: HUNGARIAN Castles and Ruins - Castles and ruins through the Hungarian history. Add the history when possible.
Flickr: L' Abbandono - Abandoned places in Italy.
Forbidden Places - Photos and information of urban exploration sites (underground quarries, catacombs, mines, abandoned factories, buildings, military domains).
Geheimnisvolles Saarland - Urban Exploration in the Saarland / Lorraine region. Photos of the remains of the dawn of the coal and iron industries and the fortifications along the frontier of the borderland between Germany and France.
Hadjek Studio - Urban exploration photos from abandoned places in Poland.
Industrial Archaeology and Cultural Landscape - Pictures of abandoned buildings and rooftops.
Lost Least - Photo galleries from Italian explorers.
Military Ruins - Bunkers, tunnels, cannons, manholes, castles, arsenals, aerials... near La Coruna, the northwest coast of Spain.
Plzen Historical Underground - Remnants of a medieval water system under the town of Plzen, Czech Republic.
The Silent The Complete - Modern ruins in Finland. Photographic tours of abandoned factories, tunnels and bridges.
Silent Wall - Features photographic journal of abandoned places around Helsinki.
Spivey Point - Two guys from Finland visiting places that are no longer actively used.
Still Alive - Italian abandoned places. Mostly factories: textile, steelworks, brickworks, automobile plant, cotton mill.
Subterranean Rome - Pictures and maps of the Christian catacombs under Rome.
Third Reich in Ruins - Although more academic than adventurous, this site offers a collection of maps, pictures and snippets of trivia useful to those seeking military leftovers in Germany.
Underground Estonia - Photos and brief descriptions of various interesting subterranean sites in Estonia.
Urban Adventure in Rotterdam - Petr Kazil's page on urban art and exploration in Rotterdam and beyond.
Urban Exploration Front - Adstar and his crew explore abandoned locations in Belgium and beyond. Photo galleries.
Urban Resources - A resource fund devoted to photography, architecture, industrial archaeology and urban exploration realized in close collaboration with ZoneTour.org.
Urban Underworld - The place to find out what is lurking beneath the city streets.
Urbaniaanse Mannen - A small group of enthusiasts from the Netherlands who enjoy the art of urban exploration.