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

Deep in the Thar desert, a temple crawling with thousands of holy rats.

A single tree's 2,800 aerial roots give the appearance of a complete forest.

Temples adorned with intricate, erotic sculptures make up one of the "seven wonders" of India.

The small cliffside monastery known as the Tiger's Nest is said to be the meditation site of an eighth-century Buddhist master.

Sacred Buddhist home of some spiritual monkeys.

Eighty million natural history specimens call this gargantuan museum home.

English antique dealers with a taste for the unusual.

Explore nearly 400 years of English middle-class home life.

One of the world's largest collections of pathological specimens.

The final resting place to 300 Victorian-era pets hides inside the city park.

This South London cemetery holds the remains of more than 15,000 people.

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

A toy store with a century-long history preserves the craftsmanship of playthings of the past.

Hear the quietest sound from across the dome.

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

One part local history, 99 parts gruesome haunted house.

Hidden beneath the streets of London is a secret subway that only carried mail.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A multi-storied adobe complex has been inhabited for more than a thousand years.

A modern ghost town whose inhabitants were driven away by the growth of nuclear power.

The largest body of water in Massachusetts annihilated four small towns just to slake Boston's thirst.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

Jail from the 19th century that was built by inmates.