Tresor (German for safe or vault) is an unerground techno nightclub and record label - one of the most influential clubs for techno music in the 1990s. The club was founded in March 1991 in the vaults of the former old Wertheim department store in Mitte, the central part of the former East Berlin, next to the famous Potsdamer Platz, however the history of the club goes back to 1988 when the electronic music label Interfisch opened the UFO Club in Berlin. UFO was the original centre of Berlin house and techno, but due to financial problems that club closed in 1990.