Dating back almost 400 years, the oldest public collection library in the United Kingdom was once the study hall of Karl Marx.

Have a seat with the father of modern computing at this Manchester monument.

A colossal floating restaurant built to look like a ancient Chinese imperial palace.

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

Teeming with illegal goods and services, this towering maze of vice is also a popular tourist accommodation.

Remnants of the most densely packed city in world history, that thrived on anarchy for 30 years.

Climb to the top of the world's largest seated bronze Buddha.

This research center for rare prosimians is studying how they sleep to help prolong human life.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

A historic coal mine that doubles as a museum and tourist attraction.

The "mysteries" of this quintessential roadside oddity were almost destroyed by neglect but were saved by fans of kitschy wonder.

A Bohemian "anti-hotel" offers off-kilter stays in Sri Lanka.

An ancient stone fortress considered by many to be the eighth wonder of the world.