TL;DR - One of my favourite places to hang out in one of my favourite cities…read more
At its most basic, Bikini is basically a shopping mall... but it's so much more than that as well. The ground floor has a mixture of shops and stalls, plus a couple of coffee shops. There's also a small supermarket at one end which stays open until about 10pm which is handy to know (they also do coffee and pastries in there if you want a cheaper option than the coffee shops in the mall). Next to the supermarket there's a shop selling art and crafts, many of which are Berlin themed and would make fantastic gifts and souvenirs.
First floor is a mixture of shops and the fab food hall Kantini. There are lots of nice things to eat and drink in there, and some of the shops are fantastic and quirky - there's a great interior design store, plus a place specialising in Japanese goods.
The top floor is where it gets interesting though, because you can access the roof. There are more shops outside, but more designer than the ones indoors. There's also a restaurant up here but most surprising is you get a cracking view over the Zoo! Not much to see at night, but great on a summer's day. There's also nice seating and planting up here, so it's a relaxed place to get away from the crowds on the streets below.