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

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

The 1852 novel "Uncle Tom's Cabin" lends its name to a subway station, a street, and several shops on the edge of Berlin.

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

Tiny memorials honor individual victims of the Holocaust.

A memorial in the Tiergarten is a reminder of the suffering inflicted on homosexuals by the Nazi regime.

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

A monument to the man who almost killed Hitler.

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

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

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

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

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

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.

Mounds, rune stones, and a 1,000-year-old church, left behind by Denmark's first two kings.

When this Iron Age bog body was discovered in 1835, it was thought that she had died recently.

A unique, modernist church tower that appears to float above the ground.

This underground car park moonlights as a permanent art exhibition.

With over 10,000 lights, this engineering marvel lights up the city after dark.

The art museum is decorated with creatively remodeled pre-Nazi swastikas.

A collection of noses tucked inside an art museum reveals how times have changed.

The world's first combination ski slope and power plant.

Opulence and fantasy collide in this royal chair which is supposedly made with unicorn horns.

Museum on earth sciences featuring a recreation of a famous curiosity cabinet.