Historical version 3 of The Alhambra (view current version)
An amazing hidden club/lounge. No alchohol available but great mint tea, pool table, couches, outside area and capacity for hundreds!
There is no sign visible from the road. You need to walk in a rather unauspicious looking door and up the stairs. You'll be amazed when you walk in.
(Latitude:
51.515088
Longitude:
-0.066271)