This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

The only quarter of the Old City not dedicated to a major world religion.

A "miracle" that seems to produce more holy fistfights than holy revelations.

Descend 2,030 years into the past in an ancient tunnel built to support Jerusalem's most famous wall.

This 11th century tower is said to be the oldest building in Oxford.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

These ancient sacred grounds granted amnesty to those who managed to reach them.

The southernmost point in the United States is a beautiful place to look at but a deadly place to wade in.

Watch the newest land on the planet form before your eyes.

This legendary urban waterfall creates a dazzling display of rainbows.

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

A hidden garden of stones engraved with scriptures, a Joseph Smith Sphinx, all carved by one man.

Pyramid home to an obscure religious group that practices modern mummification.

Here lies Lilly E. Gray, an alleged "victim of the beast," but the reason long remained a mystery.

This 17th-century Bhutanese monastery is ensconced in Buddhist legend.

This giant Buddha statue has 125,000 smaller Buddhas hidden inside it.

This Himalayan airport provides one of the most difficult landings in the world.

Despite sitting firmly in the global cradle of the Church of Jesus Christ of Latter-day Saints, this Hare Krishna temple is host to one of the largest color festivals outside India.

Flashy signs from Las Vegas’s past find their final resting place at this unusual graveyard.

This massive mall has hundreds of shops, an amusement park, and a history of deadly amusement attractions.

A surviving remnant of the thick ice mass that once mantled most of Western Canada's mountains.

This natural wonder is disappearing at an alarming rate.