The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

An underground city of salt.

A magnificent Victorian garden that brings the charm and style of old-time aristocracy to the 21st century public.

A 16th-century footpath said to be haunted by a young girl that died trapped within its misshapen old house.

Near Birmingham, England three and a half miles of top-secret tunnels housed a World War II “shadow factory” and a Cold War nuclear bunker.

The last occupied troglodyte dwellings in England weren't abandoned until the 1960s.

This ornate English estates "Prodigy House" still bears the cannonball marks of civil war.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

Elevated freight railway turned wildly successful urban park.

The highest peak in all of England is plagued by dangerously fickle climate shifts.

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

The UK's oldest theme park slowly slips away.

The Last Home of an Executed King.

This pub can leave even the sober feeling slightly unsteady.

This charming railway is one of the oldest and steepest funiculars in England.

This bridge is the first to be made entirely from iron, but designed like it was still made of wood.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

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

A complicated contraption for telling time by the moon.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.