One day in any city is never enough, but sometimes a quirk in your travel plans presents an opportunity. For us, it was one day in Berlin or zero days in Berlin. Of course we’ll take the one day! Especially since it meant being able to see friends. The biggest thing I learned? We need to go back! Getting Into Berlin from the Airport Getting from the Berlin Airport into the city involves either taking a taxi or a bus. We took the bus. And then the train. And then walked to our hotel. Figuring out the bus and train situation was not impossible – we did it after all,…