One of the coolest things in Berlin that we recommend to everyone visiting our home town is a Berlin Underground Tour is "Berliner Unterwelten e.V." And recently, I joined one of their tours again and decided to write this post for you so that you don't miss this awesome activity when looking for things to do in Berlin!
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This post first appeared on Fernwehsarah - A Guide To Travel The World, please read the originial post: here