Schiffbauerdamm 8, Berlin-Mitte
U U6 (Friedrichstrasse) S S3, S5, S7 and S75 (Friedrichstrasse)
Not the best image in the world to show off here but best I could do at the time
A huge selection of beers in this establishment with the added quirk of trading screens. If you buy a round of beer watch it's price go up, there is a minimum and a maximum price seemingly but we were all very confused by it.
Schiffbauer Pils is the house brew, with Bayreuther Zwickl Kellerbier recommended.