A 90-year-old underground water reservoir offers a more industrial kind of tranquility.

A (slightly) grownup take on the classic retro arcade.

The beautiful 1920 Pantages Theatre remains hidden just underneath the LA Downtown Jewelry Exchange.

The former locus of Boston's high culture has been shuttered and buried for over 70 years.

Possibly the world's only drive-in movie theater with an attached motel.

On a dusty county road sit the ruins of a ghost town's abandoned church.

A quirky bookstore hidden beneath a sea of whitewashed Greek villas.

An abandoned quicksilver mining town surrounded by the Big Bend parks.

Odd outsider art installations surround a Gold Rush-era ghost town.

When you can afford only half a road, you build only half a road.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

A blacklight journey through a celestial art exhibit.

Pick up all of the cosmic knick-knacks under the sun or take a creative writing course, all offered in this novelty storefront.

This attraction was abandoned after the Chernobyl disaster.

Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

This wrecked airplane has been sitting on a black sand beach since the 1970s.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

This tiny museum's sizable collection is jammed into a former underground public toilet.

An abandoned hotel in the highlands of Bali is shrouded in stories of ghosts, curses, and corruption.

Over 100 million years ago, beach-bound dinosaurs left permanent marks on San Antonio's landscape.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

The beautiful tunnel that ran from the lobby to Penn Station is still hidden underneath 34th Street.

The abandoned "Red Star Train Graveyard" is the final rusting place for precious artifacts of train history.