Neptunbrunnen

From 1941, 12,000 tons of concrete in a 15-m-high and 20-m-diameter cylinder were built to test the load-bearing capacity of the Berlin soils (turns out glacial sands are no good basis for gargantuan architecture) for Albert Speer's Germania buildings. Too massive for later blasting, this is one of the more bizarre remains of the Third Reich.

This imposing building houses the Federal German Parliament or "Bundestag" and was 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. The iconic photo symbolizing the Soviet victory over Nazi Germany shows a Soviet soldier planting the Soviet flag on top of the building and there are to this day graffiti left by Soviet soldiers on some walls of the Reichstag which were deliberately preserved by the new Germany as a memento of the war. It's perhaps the only national parliament to have traces left by a foreign army deliberately preserved. When German reunification became a reality, the new republic was proclaimed here at midnight on 2 October 1990. 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.The Reichstag has undergone considerable restoration and alteration, including the addition of a spectacular glass dome designed by the British architect Norman Foster completed in 1999. You can visit the Reichstag building proper and even listen to a parliamentary debate but you need to book on their website sometimes weeks or even months in advance. Fortunately its much easier to visit the glass dome. You can reserve a visiting time and date on their website or in the small building across Scheidmannstrasse, except during the high season you should be able to arrange a time later the same day or the next day. Photo ID or passport is required to make the booking. A passsport is required during your visit. This is a very popular tourist attraction in Berlin and can get quite crowded however it is worth the effort. The helical path up the inside of the dome is a lot of fun and the 360 degree views at the top are splendid.

The charming Baroque water palace of the Hohenzollern electors surrounded by the Dahme river and an English garden.

Nice church near Unter den Linden/Museum Island, finished in 1830 by Schinkel in English Neogothic style. Nice exhibition inside (neoclassical statues and an exhibition about Schinkel's life and work upstairs).

It is the only hemp museum in Germany; you can see the history of hemp, the culture and use of it. You can see hemp grow. There is a cafe downstairs, with an open WiFi access. Everything going on here is legal - including the hemp growing under artificial light (a low THC strain grown with a special permit) - but they do not refrain from political commentary on the legal situation of cannabis in their exhibits.

Erected in 1818 to a classically-inspired design by Karl Friedrich Schinkel as a guardhouse for the imperial palace, since 1993 this compact building has housed a small, but extremely powerful war cenotaph, the Central Memorial of the Federal Republic of Germany, continuing its use under East German rule as the primary "Memorial to the Victims of Fascism and Militarism". The interior of the Doric column-fronted building is intentionally empty, but for a small but moving sculpture by Käthe Kollwitz depicting a mother cradling a dead child. The statue is positioned beneath a round hole in the ceiling, exposing the figures to the rain and snow.

This castle is one of Berlin's oldest castles and where Prince Carl used to reside. Be sure to check out Glienicke Bridge, the bridge that became renowned for the exchange of Western and Eastern secret agents. You can also visit Glienicke Park.

A museum dedicated to everyday life in communist East Germany. The museum has very relaxed rules and you are allowed to touch and examine almost every object, which adds greatly to the experience.

In this house the surrender of Germany was signed on May 9th, 1945, ending WWII in Europe. This museum describes the history of the war between Germany and the Soviet Union between 1941 and 1945 and the GDR/German-Russian relationship ever since. Historic rooms, permanent exhibition and special exhibits.

Works from the Dresden art collaborative called "Die Brücke".

It was the only border crossing between East and West Berlin that permitted foreigners passage. Residents of East and West Berlin were not allowed to use it. This contributed to Checkpoint Charlie's mythological status as a meeting place for spies and other shady individuals. Checkpoint Charlie gained its name from the phonetic alphabet; checkpoints "Alpha" and "Bravo" were at the autobahn checkpoints Helmstedt and Dreilinden respectively. Checkpoint Charlie's atmosphere was not improved at all on 27 Oct 1961 when the two Cold War superpowers chose to face each other down for a day. Soviet and American tanks stood approximately 200 m apart, making an already tense situation worse. Now the remains of the Berlin Wall have been moved to permit building, including construction of the American Business Center and other institutions.At the intersection of Zimmerstraße and Friedrichstraße (U-Bahn Kochstraße U6) is the famous "You Are Leaving the American Sector" sign. The actual guardhouse from Checkpoint Charlie is now housed at the Allied Museum on Clayallee. For a more interesting exhibit go to the Haus am Checkpoint Charlie. This is a private museum with kitschy memorabilia from the Wall and the devices GDR residents used to escape the East (including a tiny submarine!). There are also people who set up booths here offering to stamp your passport with souvenir stamps in exchange for a small fee. You are highly advised not to put these stamps in your passport, as these are not official stamps and could invalidate it. Instead, bring along an expired passport or a small booklet to put the stamps in.

Designed by Daniel Libeskind with an excellent exposition on the Jewish life in Berlin and the impact of the Holocaust. You can easily spend a day here. There is a metal scanner and other security features you'd rather expect at an airport than a museum.

This chapel was built on the site of a church built in 1894 which sat on the "death strip" and was thus blown up by the GDR authorities in 1985. The chapel is the site of occasional memorial services for victims of the wall.

A museum dedicated to the Berliner sculptor.

The main street of former East Berlin. It is a big avenue, featuring neoclassical East German buildings, fountains and lakes.