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

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

The music is over at the Ballhaus Riviera Ballroom, but the ballroom remains in haunting disrepair.

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

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

The most visited, and possibly most controversial, museum in Germany.

The fairy tale castle of the "fairy-tale king."

A recently restored Shoreditch landmark with ties to Jack the Ripper.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Pop culture has helped to keep this iconic British building from being destroyed.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

Scattered throughout London are ancient remnants of the city's former bounding wall.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

Eighty million natural history specimens call this gargantuan museum home.

A cluttered and astounding collection of antiquities and curiosities.

One part local history, 99 parts gruesome haunted house.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.