This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

Home of Philip Johnson, one of the 20th century's most influential architects.

Ruins of a historic medical facility sits eerily by the water.

This abandoned psychiatric hospital once housed more than 4,000 patients in the middle of a quaint New England town.

An Escher-inspired library dedicated to the wonders of the human mind, yet closed to the public.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

Worlds' largest inhabited river island.

A village in India with a mysteriously high number of twins.

An old curiosity shop holds on to a centuries-old tradition of manually-distilled rose water.

India's first open-air public art district sits in the heart of the country's capital.

The largest freshwater lake in northeast India is also the only floating national park in the world.

Over 3 miles up in the Himalayas this pass is one of the highest drivable roads in the world.

The world's largest human gathering is held at the confluence of three sacred rivers, one of which is mythical.

The abandoned site of the Beatles spiritual awakening and subsequent revolt.

At 8,000 feet, the world's highest tea estate draws visitors for both its products and its panoramic views.

Remote town home to Himachalis, Israelis, and tons of hashish.

The Indian capital of black magic and witchcraft.

A startling, centuries-old subterranean marvel hides in plain sight.

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

These particularly resplendent rodents are the state animal of Maharashtra.

A former bastion of Rajput chivalry, this massive hill fort is the site of legend and tragedy.