An Iron Age fort on the edge of a seaside cliff offers a glimpse into an ancient, mystical world.

Dr. Strangelove-esque tours reveal the inside a bunker once reserved for Stalin himself.

Popular tourist destination where witches in dark hats sell dried llama fetuses for good luck.

Skulls from the plague of 1656 and World War II bombings are united by a cult dedicated to caring for the ancient dead.

Norway has built what may be the world's most beautiful public toilet.

The most famous location in China was home to whole dynasties worth of imperial rulers.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

A museum dedicated to the strange and extravagant costumes and memorabilia of the mummers, a tradition older than Philadelphia itself.

Large-scale contemporary artworks tower over fields and lurk in forests around a Jacobean manor house.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

This ancient Irish religious site is covered in ancient carvings, many of which have barely aged.

An increasingly eccentric apartment building, topped with winged beasties.

We heard you like volcanoes so we put a volcano in your volcano so you can die for sure...

This giant boulder is pinched over a 1000-meter abyss by two mountains.

The first and only carousel with a lineup entirely of insects.

Once the path of a railway tunnel, now home to thousands of glowing insects.

Neither Spanish settlers nor anyone since has been able to tell who built these strange California rock walls.

20,000 pieces in a Frank Gehry-designed building.

The enchanting archway is the only surviving portal into Dublin's lost medieval wall.

This abandoned asylum in Wales might look haunted, but it's still beautiful.

Bask in the 19th century grandeur of an eccentric Freemason millionaire's private gardens.

This cramped crevasse saw the entire population of its island suffocated inside its depths.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.