Berlin Wall memorial is a truly magnificent monument, definitely something worth visiting. Not too far from the monument, there is the museum island - even if you don't have much time to go to the museums, this is a lovely place for an hour stroll. Heading towards Potsdamer Platz, we passed by Checkpoint Charlie, a checkpoint with lots of history, so worth a quick visit. From the beautiful Potsdamer Platz, just a few minutes away, you can visit the impressive Brandenburg Gate.
The Gedenkstätte Berliner Mauer commemorates the division of Berlin by the Berlin Wall and the deaths that occurred there. The monument was created in 1998 by the Federal Republic of Germany and the Federal State of Berlin. — Wikipedia
The Museum Island is a museum complex on the northern part of the Spree Island in the historic heart of Berlin. It is one of the most visited sights of Germany's capital and one of the most important museum sites in Europe. — Wikipedia
Checkpoint Charlie was the best-known Berlin Wall crossing point between East Berlin and West Berlin during the Cold War (1947–1991), as named by the Western Allies. — Wikipedia
Potsdamer Platz is a public square and traffic intersection in the center of Berlin, Germany, lying about 1 km (1,100 yd) south of the Brandenburg Gate and the Reichstag, and close to the southeast corner of the Tiergarten park. — Wikipedia
The Brandenburg Gate is an 18th-century neoclassical monument in Berlin. One of the best-known landmarks of Germany, it was built on the site of a former city gate that marked the start of the road from Berlin to the town of Brandenburg an der Havel. — Wikipedia