Four days in Athens was probably too long (3 days would be enough). Anyway, we continued our vacation, flying into Berlin (Schnofeld airport) at 7 PM then took the Airport Express train (RE14 route) and efficient U-bahn (U2 line) to the Hyatt at Potsdamer Platz. Our first impressions of Berliners was not good - the train ticket collector was rude, and the local I asked for directions to the hotel simply ignored me. The check-in staff at the Hyatt were very friendly and helpful, providing a detailed and personal tour of the hotel, room and club lounge. The hotel itself is very modern, with spacious shower/bath tub combo design. The bathroom also has a small LCD display and volume adjustable speaker of what the TV in the main room is showing. I think we will incorporate these features into the house we will eventually build. I enjoyed Berlin best out of the 3 stops (London, Athens, Berlin), maybe because of friends (Mike/Grace and Chris/Simone), or perhaps Berlin is simply a very interes...