THEORY
Ethics
Observations
 
PRACTICE
Abandoned Sites
Boats
Churches
Drains/Catacombs
Hotels/Hospitals
Transit Tunnels
Utility Tunnels
Various
 
RESOURCES
Exploration Timeline
Infilnews
Infilspeak Dictionary
Usufruct Blog
Worldwide Links
Austria

Secret Vienna - Impressive galleries relating to abandoned buildings in, and tunnels under, Vienna (in German).
Wiens Unterwelten - Photos, Karten, Fackeltouren... the works! (in German)
 

 

 

 

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