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

Isolated atop this Balinese sea crag is a lovely Hindu temple that is said to be guarded by sea snakes.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

On Japan's Tashirojima Island, cats are king.

This collection of French root art looks like an indoor fairy wonderland.

This ancient Roman prison is decorated with an upside-down cross not as blasphemy but as saintly tribute.

Since ancient times these picturesque springs have been providing bathers with healing waters.

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

Housed in an old church, this hunting museum holds a collection of mythical bird-rabbit creatures.

It's always summer at the beach inside this former airship hangar.

An eccentric artist's abode in this small Italian town has been transformed into a surreal temple of mosaic madness.

Try not to get lost in this picturesque Brazilian labyrinth of the dead.

The history of German architecture is explored across this fairy-scale mini-city.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

This Japanese-inspired labyrinth of hot springs is hidden in a Chilean forest.

This odd Chilean waterfall-cano hotel must be entered via a rope bridge.

A Turkish ghost town abandoned in a population exchange with Greece.

A Lycian city of the dead carved into the hillside of Southern Turkey, complete with startlingly human touches.

Once a prosperous mining village, this tiny Taiwanese town is now overrun with cute cats.

Bridge that died in war and was resurected.

This ancient subterranean megalopolis is known for the hot oil traps that were installed above each of its entrances.

The deepest underground city in Turkey was designed to protect 20,000 people behind massive stone doors.

While not Turkey's deepest underground city, this subterranean redoubt is the largest.

Live a night as a Byzantine King, with a minibar and private jacuzzi.