One of my favourite buildings in Berlin has to be the Berghain Club, named for its position on the border between Kreuzberg and Friedrichshain. Originally built as part of the Ostbahnhof complex, the building was first used as a club in 1998 with the name Ostgut. It opened as Berghain in 2004. A few recent photos are below, with links for print purchase. For commercial use please contact me.