Pluto is still considered a planet in Ithaca, New York.

Stairs often replace streets on the steep slopes of this old mining town.

The Bloemen Route, or “Flower Route”, stretches 25 miles through prime Dutch tulip country as a result of “tulip mania,” the world’s first economic bubble.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

Rusting away on the edge of New Jersey are the remains of a Cold War missile launch site.

The opulent home that inspired Tintin's Marlinspike Hall and the adventures within.

One of England's most famous churches hides a pair of little known architectural treasures.

A 19th-century politician who died after walking home in a blizzard is honored with this Manhattan statue.

A daring D-Day assault by U.S. Army Rangers is commemorated atop the high cliffs of this strategic point.

The world's longest outdoor covered escalator system transports commuters through Hong Kong's hilly terrain.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

Northern Ireland's Brobdingnagian stepping stones.

The modern birthplace of Irish freedom.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

This ancient Irish tower could easily have stood in for Rapunzel's prison.

This single room has survived the centuries with almost no deterioration.

Experience a charming 1930's version of "infotainment."

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

England's oldest surviving hedge maze has been confusing visitors for over 300 years.

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

This luxury shopping lane has been protected by its own tiny police force for over a century.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

A colorful piece of contemporary art cheerfully clashes with Lyon's historical architecture.