Alexanderplatz, The Wall,Checkpoint Charly and Berlin Main Station

On our first morning in the hostel we had to get up at 7:30 for having breakfast at 8:00. After we went on a trip with the tourist-bus-lines 100 and 200 which drive past many of the famous sites of Berlin - Siegessäule, Reichstag, Alexanderplatz etc. We left the bus at Alexanderplatz and climbed the Tv Tower which is 368 meters high.Not all of us climbed it because a ticket was 8,50€ and rather expensive but we decided to go because you dont have the chance every day to climb the highest building of Germany.We were lucky because the weather was clear,so we had an awesome view over Berlin!Some of us wanted to have a drink in the restaurant on the Tv Tower but it was very expensive and so nobody went in there.
Back on the ground we walked over the Alexanderplatz and watched the Weltzeituhr which shows the time in all the different time zones of the world. We walked a lot that day and saw the Rotes Rathaus and the Neptunbrunnen.At noon we stopped by at Dunkin Donuts and on our way home we saw the Berliner Dom, the Palast der Republik (which is diassembled at the moment) the Humboldt-University and the Automobilforum,where you can see the newest cars of Bentley, Ferrari, VW, Skoda etc.
In the afternoon the whole group met at the Mauermuseum for a guided tour.This museum is not very big but gives you a lot of information about The Wall.
By subway we went to Checkpoint Charly and the museum there. It shows many ways how people tried to leave East-Berlin.The exhibition is pretty big but very interesting!
After the Checkpoint we saw "Topographie des Terrors" which is an exhibition about the GESTAPO (Geheime Staatspolizei) in the 3rd Reich. Instead of going home for dinner we decided to go to the lately opened Berlin Main Station which is definitively the biggest train station i've ever seen before!It has 5 floors and many many shops.
In the evening we went into a very strange (!!!) indian bar and got some weird (but cheap) cocktails there.
We all got a little drunk and went to a shisha bar where some of my friends smoked a shisha and they really seemed to enjoy it.I can't remember the name of the street but it wasn't far away from the Hachesche Höfe. When we went home around 1:00 the subway was out of service so we had to run home, because the doors were just oppened for 15 minutes every hour.