A spiritual sanctuary in a natural cave.

This abandoned Brutalist treehouse is a hidden architectural relic.

This church, better known for its weeping portrait of the Virgin Mary, also houses the world's oldest existing piece of taxidermy.

This centuries-old Italian chapel hangs midway down a sheer cliffside.

Typewriter museum housing more than 1,500 machines preserves the history of the grandfather of computers.

Artist Diego Morlin's war between the natural and human worlds is a wanderer's delight.

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

This former Masonic lodge has been transformed into part museum, part bar, all awesome.

A Museum of Psychiatry in a still-operating mental institution.

Explore 400,000 years of humans' "battle against darkness" in this offbeat but thorough lamp museum.

Potato-peeling mannequins, Inca art, and a dangling tuber mobile help trace the history of fries at this Belgian museum.

Dummies recreate radiological discoveries from history.

This modern arts center is built around a gem of late-Baroque architecture.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

Cozy basement bar sports an inventory of over 2,000 beers.

The Devil’s own choice when he needs a drink in Brussels.

Dramatic sea stacks adorn the coast of this small village on the Adriatic coast.

The Bourbon royal family had this unique octagonal hunting "cottage" built on a tiny islet in Lake Fusaro.

Explore the quarry where the marble was sourced for Michaelangelo's David.

This Tuscan church contains a gallery of over 700 ex-votos depicting near-death experiences.

A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.

Once a state-of-the-art tuberculosis treatment spa, these ruins are now ruled by paintball players.

This huge metal monument is slowly being stripped to its concrete skeleton.