Checkpoint Charlie once marked the most controlled doorway between two worlds. It was the only crossing that allowed foreigners to move between East and West Berlin, while local residents on either side could not use it. This strict rule helped build its reputation as a place of secret meetings, coded messages, and quiet exchanges during the Cold War. Its name came from the NATO phonetic alphabet, following Checkpoints Alpha and Bravo at the autobahn crossings of Helmstedt and Dreilinden.
The atmosphere around Checkpoint Charlie turned electric on 27 October 1961. On that day, American and Soviet tanks faced each other only about 200 meters apart. The standoff lasted hours and brought the city to the edge of crisis, underlining just how fragile the peace felt at this border point.
Much has changed since the Wall came down. Sections of the Berlin Wall were removed to make way for new buildings, including the American Business Center and other developments. The junction of Zimmerstraße and Friedrichstraße, near U-Bahn Kochstraße (U6), still displays the famous sign that reads, “You Are Leaving the American Sector.”
The original guardhouse from Checkpoint Charlie is no longer on the street. It moved to the Allied Museum on Clayallee, where it is preserved as a historical object. Nearby, the Haus am Checkpoint Charlie offers a more colorful experience. This private museum exhibits memorabilia connected to the Wall and showcases the inventive devices used by people fleeing the GDR—among them, a tiny submarine that once carried escapees beneath the water.
Street vendors in the area sometimes offer “passport control” booths where they stamp souvenir marks for a small fee. These stamps are not official and could invalidate a current passport. A safer option is to bring an expired passport or a small notebook to collect the stamps without risking travel documents.
Source - https://en.wikipedia.org/wiki/Checkpoint_Charlie
Huge technical museum, on a former railroad depot, featuring from ancient water and wind mills to computer pioneer Konrad Zuse's inventions, a collection of old to new vehicles of all types -bicycles, boats, trains, etc - and the interactive Spectrum science center with various hands-on experiments. There's an actual C-17 "Candy Bomber" airplane hanging on its façade. The railroad and aeronautical sections are hard to beat.
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).
A small but interesting collection of decorative arts from the Art Nouveau and Art Deco periods
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.
Experience the Stasi Secret Police Prison first-hand. Tours are compulsory. Some of the tours are done by former inmates.
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.
More than 30 million objects in the scientific collection and a fascinating exhibition in one of the most significant institutions of its kind in the world. Some parts still under construction.
Also known as "Picasso und seine Zeit", this not so large, but precious museum hosts a very good collection of paintings and sculptures signed by Picasso, Klee, Matisse, Giacometti, and others from the first decades of the 20th century.
The longest moving refracting telescope is 21 m long with a lens diameter of 68 cm. This giant telescope was built in 1896 by Dr. Freidrich Simon Archenhold but is now part of the Deutsches Technikmuseum Berlin. It was the place where Albert Einstein presented his Theory of Relativity to the public in 1915.
Small terrace on the top of the Park Inn, publicly accessible. Take the elevator to the 40th floor, and follow the signs up the stairs. Pay the attendant who also serves beer and coffee. Great views of the Fernsehturm. In the summer, consider base jumping off the roof with Jochen Schweizer. It is often closed in bad/windy weather, so look for a notice posted near the elevator that the terrace is closed.
The town hall of Berlin is known as such because it is made of red brick, not due to its former political persuasion. There are nice Prussian rooms inside, which are worth a look.