Service & SupportHomeService & SupportDiscover BerlinLet’s go on a tripIt takes a long time to see everything Berlin has to offer. We show you the highlights you definitely mustn’t miss. And with us, you can do it in one day. Tips for your day.U-Bahn ConvertibleUnderground secretsGet to know Berlin’s deep secrets: On our open-roofed underground tour, you’ll explore the traffic arteries under the city and find out what’s hidden down there.U-Bahn Museum Interesting facts about the U-BahnJust the thing for technology fans and subway nostalgics: our subway museum. Instead of obscure figures, you'll find interesting and astonishing facts about Berlin's subway system.