Maximize your time in the heart of Berlin with this hop-on hop-off day tour by double decker bus. Enjoy views of the city from the roof of the bus. Cover your bases with 18 conveniently located stops, from Checkpoint Charlie to Berlin Zoologischer Garten. Your pass is good for 24 hours, so you can go at your own pace. Combine this tour with a 1 hour boat ride along the Spree Canal.