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.

An incarceration museum on the spot of possibly the oldest prison in England.

Eighty million natural history specimens call this gargantuan museum home.

Hear the quietest sound from across the dome.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

The curios of pharmacist and collector Henry Wellcome.

A student driver's nightmare.

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

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

A small horde of mythical creatures lurk almost imperceptibly within the museum's wildlife dioramas.

Huge concrete structures designed as an early warning system for Britain to detect enemy aircraft.

The shortest river in America flows for just 201 feet.

10,000 flowered plants bloom in the City of Roses.

The park preserves a single, rare species of carnivorous plant that spells doom for unsuspecting insects.

This 19th century jail was mainly used to incarcerate the drunk and disorderly.

The remains of the dam that unleashed a 15-foot wall of water on Denver.

The burial grounds of a secret society includes fences topped with fake Tesla balls.

The remnants of the fortress that saved Georgia from the Spanish still stand guard on their swampy island.

Carved faces add a touch of magic to this island's impressive oak trees.

A stark reminder of the huge nuclear weapons plant that once stood on the site and its effect on the surrounding area.

Where Nor'easters go to die.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.