Discover the beautiful city of Berlin on board a double decker bus with Red Buses,The extensive route covers the must-sees around the city, making it ideal for first-timers in Berlin,The buses will take you close to all the main sights of the city, including Brandenburg Gate and Checkpoint Charlie,Enjoy unlimited hop on hop off bus pass across three routes with [18 stops](http://res.klook.com/image/upload/v1530267960/Map_2017_Berlin_ii46k2.jpg) across central Berlin