Full map: http://goo.gl/maps/XlKCu
Starting from the S-bahn station, on the south side of it you'll find a statue of children from the Kindertransport, the name given to the rescue mission that began nine months prior to the outbreak of WWII . The UK took in nearly 10.000 Jewish children from Nazi Germany, Austria, Czechoslovakia and Danzig. The children were placed in British foster homes, hostels, and farms.
On the north side of the station, you'll find the well known Palace of Tears - Tränenpalast (2), which was the central terminal for travellers between East and West Germany.
Leading north on Friedrichstrasse and then left, you'll find the Sammlung-boros Bunker (2), which is not a private art gallery (tours by appointment).
Not far from here it starts the Humboldt University Campus (3), with very interesting buildings immerses in a park. There are different exits but you'll be simple able to go back on the main street and leading east on Oranienburger Strasse.
Here you have the Tacheles (4) building (which has been a famous art building, but now is closed and they're going to demolish it soon) and on the same street the Neue Synagoge (5), suvived to the Nazis, with its characteristic golden dome.
Here you can walk a bit in the district, which once was the Jews district and now it's a renovated area full of touristic restaurants and art galleries.
On Große Hamburger Strasse you'll find the Alter jüdischer Friedhof (6), which is the oldest jews cemetery, small and surrounded by buildings, but very interesting, with some old graves and a statues group at the entrance.
From here you can go at Hackescher Markt (7), but before having a rest, you can have a look at the Hackesche Höfe, a notable courtyard complex consisting of eight interconnected courtyards.