This hidden green space is the city's second largest conservatory.

A cluttered and astounding collection of antiquities and curiosities.

Eighty million natural history specimens call this gargantuan museum home.

A historic house left in "dramatic still life."

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

Luxurious hotel designed to stir the imagination of its many visitors.

An ancient capital city that dates back 3,000 years and harbors many surprises.

This is not only one of the oldest collections in Europe, but also possibly the most beautiful.

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

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

The deepest metro station in the world.

Experiencing Guatemala's sensory-exploding church is a blunt reminder of European influence.

This tiered waterfall is so pretty it may cause visitors to cry tears of their own.

Buried in the Laos jungle is a sanctuary for bears that would have otherwise been milked to death by poachers.

Pop culture has helped to keep this iconic British building from being destroyed.

London's old-school healing garden.

Don't be fooled by this fake medieval facade even if it is almost 300 years old.

This gem-encrusted temple is said to contain some of the Buddha's hair which can make the deaf hear and the blind see.

Hidden deep in the Guatemalan jungle is a turquoise paradise of natural pools, caves, and waterfalls.

A massive underwater sinkhole made famous by Jacques Cousteau.

This fairytale inspired, warped building houses restaurants, shops, and a radio station.

The second largest reclining Buddha in the world got "lost" for over 120 years.

A Buddha-filled cave that is named after a giant monster spider.

A 10 million-ton rock once worshiped by the Tahamies Indians, accessed by an astounding staircase.