Haus der Visionäre (HDV) sits on the Arena Berlin grounds in Alt-Treptow, right on the Spree between Schlesisches Tor and Treptower Park. The former 1920s bus factory holds more than eight glass-roofed halls and a courtyard of around 1,200 square metres. The programme spans electronic club nights, concerts, exhibitions and festivals. Club der Visionäre, Hoppetosse and the Badeschiff are right next door.