Nick: look around in the upstairs galleries. Most artists offer inexpensive prints or posters of their work that you won’t find anywhere else. Learn more at http://www.partyearth.com/berlin/tacheles
DHR.com: This protestant church is a great piece of history where you'll see reminders of the war. Do not miss the Memorial Hall at the church's west tower to see some exhibits about the church's history.
Burger Joint · Kollwitzkiez · 177 tips and reviews
Kathrin S: American style kitschy restaurant. Burgers with a good reputation. Check the names of the waiters on the bill, it'll make you laugh! Concerts, sometimes entry fee!
Großer Stern (Straße des 17. Juni), Berlin, Berlin
Monument · Tiergarten · 165 tips and reviews
DHR.com: This historical monument at the center of Berlin was built to commemorate the Prussian victory in the Danish-Prussian War. Go to the observatory for amazing city views. Opens at 9:30am.