A replica of the Liberty Bell rang daily from West Berlin's City Hall throughout the Cold War.

Known simply as "The Hand," this famous public sculpture in Berlin was featured in a Depeche Mode music video.

One of downtown Berlin's last reminders of its Communist past.

A stone from Africa's tallest peak is immortalized in a Potsdam palace—but is it actually the mountaintop?

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

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

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

The world's first motorway was used as a racetrack until the late 1990s.

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.

One of the largest refracting telescopes in the world, and the first built specifically for studying astrophysics.

The site of the original experiment that would be used to disprove the theory of luminiferous ether.

A historic fire call point.

One of the world's heaviest musical instruments towers within a popular urban park.

This tribute to the fictional detective stands at the famous literary character's address.

After local authorities changed the design, the building's architect, Le Corbusier, wanted nothing to do with it.

A century-old shot ball factory tower is open to the public once a year.

After a nearly successful attempt on Hitler's life, the conspirators met their fate in the courtyard of this Berlin building.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

A museum dedicated to a Cold War era sausage.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

Art and a pun, all in one.

A prime example of socialist modernist architecture, wrapped in a enormous fresco about the media.

This sprawling Jewish cemetery is one of the largest in Europe.