Believed to hold the remains of Japan's most infamous fox spirit, this stone is said to kill those who dare approach.

An abandoned monastery sits on a far-off island in the Adriatic Sea.

A medieval castle was used for centuries as a hemp farm.

A well-studied colony of endangered bats roosts in this abandoned Victorian Gothic mansion.

Legend has it that this bronze orb, which sat atop an ancient Egyptian obelisk, once held the ashes of Julius Caesar.

An ancient Ethiopian cave church is endangered by the simple building of a road.

A small canyon with petroglyphs and a seasonal waterfall, only a short hike from the remnants of old Route 66.

These natural cliffs look like they are a part of an old castle complex.

A century-old stone hermitage overlooks this remote pass in the Hoggar mountains, surrounded by a landscape of eroded volcanic cores.

This small island declared independence from South Korea in the hopes of attracting tourists.

Every summer West Seattle experiences a housing bloom.

This subterranean town of over 50 dwellings lies thirty feet beneath the Earth's surface.

Strange rumors surround the artist who created these solemn metal guard dogs.

Numerous stone coffins from different centuries, lined up in a sixth century basilica.

A magnificent, reportedly haunted mansion built for a composer by Spiritualists.

This 2,000-year-old Doric bridge is still open to pedestrian traffic to this day.

Also known as the Temple of Poseidon, this is one of the best-preserved Greek temples in the world.

A historic casino where Dostoyevsky is said to have lost it all on a single spin of the roulette wheel.

Nature and art meet in this curvy creation

This 13th century Gothic brick castle is the largest in the world by surface area.

These cliff-dwellings might be Mexico's least visited archaeological site.

Mirrors and glass shards cover every inch of this arrestingly beautiful mosque.

Years of archaeology, just chillin' by the water cooler.

This subterranean disco dance club in a Cuban cave comes with bright lights and a dark legend.