If you do only one thing in Berlin, let it be this tour with Janna. I can tell you from personal experience because it was the only thing I did besides clubbing on a long weekend in Berlin. Janna changed the tour to accommodate walking/public transport for me, instead of private car. She asked me the day before if I wanted to see the site of the Wansee conference, so I said sure not knowing anything about it. I will never forget it as long as I live, nor will I forget the Otto Weidt Museum or any of the other sites in between on this personalized tour. Even though Tours by Locals was referred to me by a friend who showed me her photos from her tour in Berlin, you still need to see it yourself. We did stop for a much needed lunch. Even on one hour of sleep, I highly recommend Janna’s tour!