The Zoo Bar is near the Stadtkirche and therefore at the border of the pedestrian area. Which is an advantage in this case since it means that the people ending up there knew where they wanted to go and are most often very nice and relaxed.
On the ground floor all the tables are aranged at the banks of windows, and you can actually sit on the window sill. Although it can make you feel like being in zoo ( - the name itself is derived from the fact that it once was a pet shop though - ) it doesn't mean that it isn't comfortable inside. Additionally, in the summertime you are able to sit outside.
Going upstairs you won't only find aquariums, but also the smoking area with some nice lounge chairs. The restrooms are here as well.
The selection of beverages is very good, you'll find more than the usual stuff. I like to go here for lunch. Their menu changes daily and can be found online on their website. German only I'm afraid. The food itself has a high standard, but is surprisingly cheap.
They also offer something calles Hurtigessen during lunch hours, where you get the meal of the day and an espresso for 10 Euros. Unless it takes them more than 10 minutes to serve, then it's free of charge.
They also offer brunch on Sundays, which is supposed to be very good. I haven't tried it yet, but I definitely will. read more