Today we shall focus on the Kreuzberg area in the morning and Potstamer Platz area in the afternoon, mainly by foot. Both areas are peppered with architectural gems. The morning we will also see some historically important sites such as where Checkpoint Charlie was and the Topography of Terror which was the Gestapo headquarters. The highlight in the morning is the Berlin Jewish Museum by Daniel Libeskind. In the afternoon, we have the Potsdamer Platz area which was master planned by Renzo Piano in the 1990s, but there are some important post-war civic buildings by Hans Schroun and Ludwig Mies van der Rohe. We have a booking for a tour of the Berlin Philharmonie, the building that changed how music concert halls are designed. Then between 16:00 - 20:00, the New National Gallery by Mies and renovated by David Chipperfield is open to the public for free. If we still have time and energy after, we could head over to Dutch Embassy by OMA which we can see from the exterior. It is close to our accommodation but for the adventurous ones, we could continue onto East Side Gallery, a permanent open-air gallery in Berlin-Friedrichshain, created on a 1,316-meter-long surviving section of the Berlin Wall with 118 artists from 21 countries who were invited to paint murals on the Wall, transforming it into the world’s longest open-air gallery. Beyond that is the gritty, alternative Friedrichshain area which is slowly being gentrified but it still has some of its raw, creative edge, with remnants of its squatter past. The disused railway buildings near Warschauer Straße S-Bahn station in Friedrichshain is a well-known nightlife and cultural hotspot in Berlin that’s worth checking out as part of the East Berlin vernacular.