Rumors of the occult haunt this upscale 1920s hotel.

A stunning garden filled with fantastical environmental folk art and sculptures.

Centuries of crashing waves carved out this small hole in the rock, which lights up at certain parts of the year.

This medieval footbridge in the Swiss Alps is known to attract cliff-jumping daredevils.

An Aztec snake god has taken the material form of an apartment complex.

Extraordinary sculpture garden created by an eccentric English poet.

An abandoned Santa park is as far as this proposed theme park kingdom got toward completion.

The remains of an ancient settlement in one of the oldest archeological sites in South America.

The ominously named cave is home to some remarkable ancient art.

Stalactites and stalagmites in a beautifully lit cave.

Water and windows define this defensive Italian well.

This picturesque Umbrian city has a subterranean side that has long remained hidden.

This quaint Italian town keeps losing ground as the sides of its plateau slowly erode.

A 16th-century horror show built in a lovely Italian garden.

This immaculate and historic water garden culminates in a massive stone dining table with an inset fountain for chilling the wine of the Cardinal's guests.

Gigantic mosaic sculptures of the figures on Tarot cards fill this colorful Tuscan garden.

Geothermal waterfalls in Tuscany.

This 16th-century monastery has been turned into a surrealist architecture compound.

One Italian taxi driver covered his entire house in small seashells creating a weird bit of architecture that is preserved to this day.

This Tuscan lake hides a 13th century town that is still visible when the water recedes.

Sitting on an Italian hilltop is this surreal fortress built by the mad inventor of electrohomeopathy.

Filled with goldfish swimming in a shallow pool of sea water, this ancient crypt is more wishing well than burial site.

The skulls and bones of thousands of soldiers line the walls of this small Italian chapel.

This winding road through an Italian canyon may be the most scenic drive in the world.