This monumental work of art symbolizes the coming together of a previously divided city.

A local train station entrance hall doubles as a sanctuary for barn swallows.

A fascinating insight into daily life in the Eastern Bloc.

Super-heavy Nazi architectural experiment.

A memorial commemorating the place where Truman gave the order to deploy the first nuclear bombs on Japan.

The home of president Truman during the Potsdam Conference, and the place from which the atomic bomb strike on Japan was triggered.

For patriotic Russians, this memorial honoring the Soviet soldiers who died liberating Berlin in 1945 is the most sacred location outside of Russia.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Reminders of the Battle of Berlin still scar the railway.

A haunting contrast of trains that both saved and took the lives of Jewish children in Nazi Germany.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

Cold war icon and onetime "hole" in the iron curtain.

Tiny memorials honor individual victims of the Holocaust.

Dedicated to the European Sinti and Roma peoples murdered during the Holocaust.

The "Prussian Versailles" that is as glorious today as when it was built.

Designed to resemble foreign architecture, this mosque-looking structure was used to pump water to a royal fountain.

Solar observatory doubles as a daring display of Expressionist architecture, much to Einstein's chagrin.

If you visit the burial place of King Frederick the Great, you'll likely find a couple of potatoes sitting on his tombstone.

Germany's Glienicke Bridge has a shady history of clandestine meetings, espionage, and spycraft.

A tree-like building perches on its trunk in the Steglitz neighborhood of Berlin.

This obscene artwork on the side of a newspaper office pokes fun at a rival paper's former editor-in-chief.

From Nazi chemicals to the CIA, this architectural marvel has played a fascinating role in German history.

The entrance to this Frankfurt subway station looks like an old tram car crashed into the concrete sidewalk.

This century-old cinema house has a marquee that has been hand painted by a single man for over 25 years.