Reminders of the Battle of Berlin still scar the railway.

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

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

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

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

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

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

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

The world's first clock to use set theory as a measure of time required the invention of a new light bulb just to maintain its obtuse measurements.

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

Berliners converted a bombed-out, disused lot into a community-run urban farm with its own cafe and bar.

The walls of Germany's Parliament still show the scars of the Red Army takeover in World War II.

This conical hill was built as a testing ground for an engineer known as the Glider King.

Visitors can explore the role of mysticism throughout the ages inside this interactive museum of magic.

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

Super-heavy Nazi architectural experiment.

Someone loved this song enough to carve all of its lyrics onto a tree trunk in a Berlin park.

A 12th-century fortress containing some of Berlin's oldest buildings.

Home to 10,000 medical specimens including the remains of Rudolf Virchow's extensive collection of pathological specimens.

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

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

From toys to kettles to scientific instruments, this German museum celebrates the beauty of 20th century design.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

This World War II bunker now survives as a documentation of the Nazi regime and war crimes.