This water-powered cliffside railway is one of the steepest funiculars in the world.

Semi-precious Blue John stones have been mined in this cavern system for centuries.

Large Hadron Collider and the Birthplace of World Wide Web.

To literally keep their waste out of their own backyards, the citizens of this English city built an impressive sewer system that is still in use today.

These iconic characters honor Carl Giles, who brought humor to newspaper readers for almost 50 years.

This charming, narrow-gauge railway in the Thames Estuary is sometimes referred to as the "Train to Nowhere."

The remains of the great moral philosopher reside in a university in London.

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

This stream-carved gorge has inspired poets, hidden smugglers, and trained soldiers, all without losing its beauty.

Sweden's first nuclear reactor, R1, can be visited 25 meters underground.

This statue of a Hindu cosmic dancer at CERN is a metaphor for modern physics.

CERN's beautiful, bending sculpture is a tribute to the spread of knowledge.

The World Wide Web was created in this nondescript corridor at CERN.

Pilgrimage site for star-crossed lovers.

Two stone columns flank the grand Venice square, but there were supposed to be three.

This small group of sand dunes manages to pack in a strange rainbow of colors.

This statue once earned the distinction as one of the "Three Major Disappointments of the World."

A dazzling temple featuring a towering 12-meter golden Buddha.

One of its engravings is believed to be among the first representations of medical and surgical instruments.

Ozymandias’ time-keeping temple.

Both church and state get put to the torch in this annual festival in the "Bonfire Capital of the World."

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

This striking observation tower shaped like a spinnaker sail is the newest icon in historic Portsmouth.