This small chapel is built of human bones and decorated with a golden skeleton.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

A unique bridge with an equally unique view.

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

A remarkable two-country morph, this town is part of Germany legally but is by all other measures Swiss.

Bell tower juts out from a village buried under a lake.

Vast stretch of tide-pools with a unique Moroccan charm.

Morocco's Argania trees are infested with nut-hungry goats.

The oldest known university in the world is in Fez, Morocco.

Traditional 11th-century outdoor tannery.

The other side is actually green.

One of the two original gateways into the Kasbah, this gateway is a nesting site for storks.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

The complex has been abandoned since the Croatian War of Independence, barring a stint as a set for 'Game of Thrones.'

The imposing piece of artwork is a celebration of Pan-American fraternity.

Pivotal home of Nobel Prize winner Pablo Neruda.

Hitler's bleak vision of relaxation still stands as a mostly abandoned 10,000-room resort complex.

Looming communist pillar with a Czech twist.

This automated sculpture of two men peeing will spell out text messages with their micturition.

Buried five stories underground, this Soviet bunker is packed with gas masks and Cold War paraphernalia.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Macabre astrological automaton clock dating to the late 1400s.

An interactive exhibition space dedicated to the kinetic sculptures of Swiss artist Jean Tinguely.