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

After a short 5 year run, this former major theme park sits in ruin.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

270 million year-old forest of stone.

A clear example of the process of erosion in action.

A bizarre house filled with an astounding array of collections.

This complex of vertically-excavated Buddhist, Jain, and Hindu monolithic temples in India's Maharashtra providence illustrates a spirit of tolerance characteristic of ancient India.

A collection of grotesques lines the walls of this Italian villa.

Two adjoining collections of 19th-20th century physics apparatuses and instruments.

Ruins of a 10th century church tucked away deep in a botanical garden.

Train tunnel running underneath Quebec City.

Collection of nearly 500 concrete figures sculpted by the late Veijo Rönkkönen.

One of the oldest medical collections in Europe focusing on rare surgical instruments.

Japanese national treasure originally built in 593 CE.

Steaming blood-red hot spring from hell.

A fifth-century temple improbably built into the side of a cliff.

The biggest museum dedicated to insects in North America, one of the largest in the world.

The loneliest island in New York.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

Shrine to Japanese water-goblins, complete with their preserved body parts.

An architectural statement of artistic intent smack in the middle of Providence, Rhode Island's Colonial uniformity.

The abandoned Japanese amusement park once loomed as a dystopian Disneyland.

A majestic lion statue guards this Parisian botanical garden, and feeds on an unsettling item.

Known as the "Dodo Manège," this carousel features a herd of animals that have disappeared—or may be gone soon.