google my business review link
https://goo.gl/EcFB5K
Tripadvisor
https://www.tripadvisor.de/Attraction_Review-g187323-d16858951-Reviews-Birchys_Berlin_Tours-Berlin.html
Yelp
https://www.yelp.de/biz/birchys-berlin-tours-berlin
Foursquare
https://foursquare.com/v/birchs-berlin-tours/5c73ac5227cbd10025dbe500
facebook
https://www.facebook.com/pg/Birchys-Berlin-2435405673154115/reviews/?ref=page_internal
Webwiki
http://www.webwiki.com/birchysberlintours.com
Daves Travel Corner
http://www.davestravelcorner.com
We did the behind the wall and the Cold War Tour with Beth. It was really nice and we learned a lot! And Beth was really cool and answered all our questions and it was all really fun and informative. We would definitely do it again. 🙂