This Greek temple, open only an hour a day, was the site of a war of tastes between an architect and an artist.

This museum is housed in an unassuming building that witnessed one of the most daring feats of satire in modern history.

Nature is slowly overtaking this disused cemetery on the outskirts of Brussels.

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

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

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

Inside this Icelandic greenhouse, geothermal energy keeps tomatoes warm and growing.

This remote eatery and museum is preserved as a time capsule of a small Icelandic fishing town.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

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

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Rising from the sea like a stone monster.

Staves, storm-calling, and of course, necropants.

Walk through Czech history in Prague's largest graveyard.

The hidden lair of an alchemist rediscovered in a 2002 flood.

Countless grotesque faces stare out from this eerie Prague art wall.

A Jenga-style cylindrical tower of books that appears to go on forever.

Two stunning 17th-century libraries and a cabinet of curiosities.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

The yawning maw of this pagan visage is said to bite off the hands of liars.

An alchemist's "magic door" stands in the middle of a Roman park.

Rome's semi-secret peephole vista is also a former Crusader stronghold.