Since the end of the 1990s, four teams of star architects have been working on converting four 112-year-old gasometers into a new urban complex. At the basement floor the Bank Austria venue hall offers a wide range of different events, including pop, rock, jazz and classical music as well as musicals, contemporary opera, theatre, comedy, dance events such as raves, clubbing, gala dinners corporate events, exhibitions etc. Maximum capacity is 3,500 spectators.