The highest waterfall in Italy is only "turned on" five times a year.

Walk in the footsteps of the gods and straddle two tectonic plates.

Not one, not two, but three natural bridges remain in this captivating spot post-sinkhole.

Unique geological formations in China, featuring some suggestive shapes.

Vortex-shaped aquarium hosts Europe's largest school of piranhas and other ocean creatures.

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

Cabaret where the show girls are all androids, and the patrons couldn't be more pleased.

Countless stories attempt to explain Poland's mysterious J-shaped trees.

Medieval town turned hippie commune, once home to the secret foreskin of Jesus Christ.

This beautiful natural train tunnel is said to grant the wishes of visiting lovebirds.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Stunning examples of Russia's 18th-century wooden architecture.

Medicinal spa created with the discharge from a geothermal energy plant.

Enormous underground chamber built to detect 'ghost particles' of the universe.

The design of the Palacio Salvo has been described as "a lighthouse on top of a building."

A sunken idol welcomes parishioners to Davy Jones' Locker.

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

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

Jumping-off point for a climb up Mt. Everest is the most dangerous airport in the world.

An odd little fishing town that is inundated by tourists looking to be locked up in a cage and surrounded by great white sharks, because why not?

A canvas of crops grow from vibrant red soil in this terraced farmland.

A submerged village appears when dam levels drop.

These azure waters were thought to lead to the Mayan Underworld.

An ethereal glowing blue ocean cave in Croatia.