Like said on restaurantandbardesign.com: “Café Moskau, within which the Avenue Club is located, was built in early 1960s Berlin as a paean to the avant-garde architecture in East Germany at the time, and as a symbol of a new era, dedicated to the peoples of the then Soviet Union. Following the reunification of Germany, the venue was used to host parties, but is now a listed building, and Studio Karhard have redesigned and refurbished the basement bar and club.”
You should definitely find more images about this project – quite impressive, at least to my taste.