Photo: Carlos ZGZ, CC0 via Wikimedia Commons
An old cargo ship hull converted to a fresh-water swimming pool, anchored permanently on the river Spree. Provides a nice opportunity to swim on the Spree, without actually swimming in the river itself, which is far too polluted. A bar with disco DJ music is situated just next to the pool. In winter time, the pool is covered against the weather.
© OpenStreetMap contributors
Oberbaumbrücke
Arguably the most beautiful bridge in Berlin and the only connection between Friedrichshain and Kreuzberg. As signage on the bridge indicates, it was built twice - once in the 1890s and once in the 1990s. Before reunification the border ran where the bridge now is.
The longest stretch of the Berlin Wall still in existence, painted by artists in 1991 and restored in 2009, after years of decay. At Mühlenstraße, next to the river Spree. The murals are painted on the east side of the wall after the fall of Communism; so they are not from the Cold War, during which murals could only be painted on the west side. Make sure not to miss the famous mural of a car seemingly crashing through the wall with Leonid Brezhnev and Erich Honecker kissing above it. It is actually on the back side of the gallery (it is facing away from the street.) It is just inside the entrance of the Eastern Comfort Hostel, near the east end of the gallery.
The Wall
The longest stretch of the Berlin Wall that is still standing. It has been painted by street artists and has several famous art pieces. (If you want to see the wall in its original condition, see the Gedenkstatte Berliner Mauer in Wedding.)
At this outdoor climbing area which is on the RAW Gelände you can do rope climbing at a cone-shaped high-rise bunker from World War II, called the Kegel (cone). The venue also offers an indoor and outdoor bouldering area. In the Kegel shop you can rent or buy climbing gear and book rope climbing or bouldering courses. In summer, there is also an open-air cinema and a beergarden right next to the Kegel.
K36
150-200 m along the Wiener Straße (bypassing the fire house and the public swimming pool) from U-Bahn Görlitzer Bahnhof, the park is famous for the Turkish families barbecuing on summer weekends, failed contemporary art and relaxed atmosphere of students. It does have a reputation of being full of pickpockets and drug dealers though and the police makes regular visits to this place to check on the situation.
Reichsbahnausbesserungswerk
The RAW Gelände is one of Berlin's best known and wildest culture and party areas. It is on the old railway repair premises of the former (East) German State Railway (Reichsbahn) and includes several clubs (Lokschuppen Berlin, Cassiopeia, Haubentaucher, Der weiße Hase), concert venues (e.g. Astra Kulturhaus), Bars (e.g. Badehaus), the outdoor climbing park Kegel at a former cone-shaped WWII high-rise bunker, the indoor skate park Skatehalle Berlin, art galleries (RAW Art, Urban Spree), flea markets at the weekend and the open-air cinema Inselkino.