Policemen in front of the German Chancellor's office. That day there was the open doors day. I forgot my bike-locker at home and couldn't leave the bike to see the office from inside.
The Oberbaumbruecke bridge near Treptower Park. On the ad there is a Turkish deputee from the governing SPD party.
The House of the World Cultures. They also use to call the building "the smile of Jimmy Carter" and "pregnant oyster". Depends on your preferences.
Intersection between Scheidemannstr and Yitzhak-Rabin-str, and indicator to Reichstag and the building itself in the distance.