Relics from an era long gone, sit idle outside this Estonian museum.

The U.K.'s first underground railway line is now a lively thoroughfare for runners and cyclists.

One of the world's largest pyramids stands within El Mirador, the "lost city of the Maya."

This kitschy tavern is also home to rare early editions of "Treasure Island."

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

An early-19th-century hotel with a past that is steeped in the Civil War.

This haunted hotel built on natural springs once served as a hospital for a quack doctor promising a cure for cancer.

Hollywood's oldest hotel is the site of the first Academy Awards, the birthplace of Marilyn Monroe's career, and the home of Montgomery Clift's ghost.

Said to be one of Sweden's most haunted places, this vicarage once even attracted a ghost-busting priest.

San Francisco's oldest operating hotel, with a Victorian atmosphere and a "haunted" fourth floor.

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

Visiting dignitaries and Hollywood stars once stayed at this 1920s hotel, alongside ghosts that are said to haunt its corridors.

In the middle of a remote desert town is a surprisingly opulent hotel.

Two monstrous faces loom over a village in Czechia.

Nineteen ancient rock-cut Buddhist caves can be found on the outskirts of Mumbai.

The tallest statue in the world is twice the height of the Statue of Liberty.

A towering work of stone and philosophy that was constructed using ancient Hindu science.

Buddhist monk remarkably preserved because he started the mummification process while still living.

This 16th-century mosque is the hallmark of the African architectural legacy in India.

The world's largest banyan tree is followed by a community of worshippers.

This abandoned stepwell is one of the largest, deepest, and certainly one of the creepiest in India.

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

A nearly unconquerable island-fort in the Indian Ocean.