An imperial church bombed to ruins during WWII now stands as a jagged memorial.

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

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

Berlin's oldest surviving academic architecture hosted decades of animal dissections.

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.

A restaurant and observation deck built in a unique broadcasting antenna.

Berlin's old airport.

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

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

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

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

A fascinating insight into daily life in the Eastern Bloc.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

A marine aquarium with an astounding variety of fish hides in the basement beneath the famous Palm House.

Though it's not the largest, this one-kilometer outdoor market is reportedly the longest in Europe.

An eccentric Victorian aristocrat's enormous collection of medieval armor and weapons from around the world.

Chelsea's soldiers were given strict orders when crossing this historic bridge.

Formerly known as Saville Theatre, this mid-20th-century entertainment hub includes an ornate frieze.

A museum that chronicles the interesting and often dark history of the London docklands, once one of the major trading ports of the world.

This unassuming alcove in London’s famous Tower Bridge once served to capture, store, and display dead bodies from the River Thames.

A giant scrawl on the skyline of south London.

The Great Fire of London and the regulation of one-way streets both started in this alley.