Concierge.com's insider take:
This popular café offers sofas, newspapers and a simple menu. The array of pastas, salads and baked potatoes make this a vegetarian haven in an otherwise meat-heavy city. However, most visitors just stop in for coffee, cakes and conversation. Marlene Dietrich used to drink here in the 1920s when she was a student at the local music school, and Residenz still caters to the college crowd. Open till 1 a.m.