A monument to the three wars that led to German unification towers within a Berlin traffic circle.

At one of Berlin’s oldest churches, visitors can place mosaic tiles to help restore a medieval mural.

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

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

Metro station with a claim to rock n' roll fame.

Reminders of the Battle of Berlin still scar the railway.

Residents of Berlin take their coffee and cake in one of the city’s most restful spaces: a cemetery.

A towering monument to war, located on a beautifully peaceful hill.

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

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

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

A portable, wooden replica (minus the hyphen) of Hamburg’s iconic crooked coffee shop.

The skeletal frame of a decommissioned gas-pumping station offers breathtaking views of greater Berlin.

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

This curious sculpture represents the perseverance needed to take to the skies.

The final resting place of many of Germany's most famous communists.

A museum in the building where Nazi Germany signed its surrender tells the story of World War II from the Soviet perspective.

Tiny memorials honor individual victims of the Holocaust.

A brush maker used his factory to protect blind Jews from the Gestapo.

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

A traditional U-Bahn station in Berlin gets a string of rather untraditional benches.

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

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

Puppet theater and museum holding a collection of more than 300.