Mitte

The only surviving Berlin city gate and a potent symbol of the city. This is the point where Straße des 17. Juni becomes Unter den Linden. The gate was designed by Carl Gotthard Langhans in 1791 and was intended to resemble the Acropolis in Athens. The Brandenburg Gate now symbolizes reunification, after dividing East and West Berlin for decades)

The Reichstag (http://www.bundestag.de/)— This imposing building houses the Federal German Parliament or "Bundestag" and was originally completed in 1894 to meet the need of the newly-unified German Empire of the Kaisers' for a larger parliamentary building. The Reichstag was intended to resemble a Renaissance palace, and its architect, Paul Wallot, dedicated the building to the German people. The massive inscription in front still reads: "Dem Deutschen Volke" - 'For the German people'. The Nazi leader Adolf Hitler exploited the fire which gutted the Reichstag building in 1933 by blaming the Communists for the arson and for attempted revolution. There is good evidence to suggest, however, that his followers were actually responsible and that this was a manufactured crisis. When German reunification became a reality, the new republic was proclaimed here at midnight on the 2nd October 1990. The Reichstag has undergone considerable restoration and alteration, not least the addition of a spectacular glass dome designed by the British architect Norman Foster. The Reichstag building is well-known in the art world thanks to Paris-based Bulgarian artist Christo's mammoth 'Wrapped Reichstag' project in 1995. The entire building was swathed in silver cloth for two weeks that summer. You can visit the dome for free but you will need to register online in advance in order to do so.

Go on guided tours below Berlin to the WWII bunkers, flak towers, cold war defence shelters, etc.

There are three huge collections housed within this grand building: the Collection of Classical Antiquities, the Museum of Near Eastern Antiquities and the Museum of Islamic Art. The Pergamon Museum was the last museum built on Museumsinsel Museum Island and was intended to house the great acquisitions brought to Germany by archaeologists of the eighteenth and nineteenth century. The museum's best-known attraction is the Pergamonsaal. The Pergamon Altar 165 BC, from the eponymous Asia Minor city-state, is three stories high and served as the entrance gate to an entire complex. It is astounding both because of its size and extremely precise detail, especially in a frieze which shows the gods battling giants. The entire room is the same color as the building's stone, making the details on the frieze section stand out even more. Facing the stairs, on the left hand side of the room there is a small-scale model of the altar which allows the viewer to see where the frieze segments would have originally been mounted. A 1:300 scale model of Pergamon city is on the right side of the room. The monumental market door of Milet has just been restored and until 2012-09-30 there is a 360° artistic panorama of the old pergamon presented putting the exhibition into context.