I have some questions about my trip to Berlin
1. What do I search for on the ticket machines at Schonefeld airport to get to Potsdam Platz and/or Tiergarten area?
2. I am looking for a hotel in a busy area with nightlife. I have stayed in Tiergarten before which seemed quiet at night. I have done several searches and the nightlife seems to be spread out. Kruezberg seems to be the "new" area, but I read that the north side of Mitte is also popular.
3. I would like a book of tickets, like a carnet, for the U-Bahn. Is this possible? And can the tickets be used at night?