And anyone with a living room like this has the wherewithal for a work of art or two. Works by HA Schult, Günther Uecker and Jeff Koons adorn the bar, which is located in the former district and regional court - now an exclusive residential area following its conversion. But AQ has more to offer than just eye-catching opulence: In addition to the classic bar area, there is a piano lounge and a library. On Wednesdays, there is house music at the so-called Living Room Concerts. On other days, there are readings and afternoon teas. The Bistro Sommelier, the Steakhouse Mash and the 20° Restobar are also located under the same venerable roof.