One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

Geological storytelling.

An ancient Egyptian temple in the middle of Madrid, Spain.

In the fictional world of Kcymaerxthaere, celestial wonders marked a portal to a powerful route of travel at this site in Madrid, Spain.

Commonly acknowledged as the only public monument to the Devil himself.

Cliffside houses provide a spectacular view from their perch above the valley.

A huge cathedral single-handedly constructed by one eccentric monk.

Somewhere there is a giant who can no longer poop, but now travelers can stay inside his anus.

A magical and peaceful ruined Cistercian abbey in what is now southern Belgium.

A 14th-century fortified keep showcases the masterpieces of an ingenious 20th-century clockmaker.

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

Medical history with an amazing, if frighting, collection of wax diseases on display.

One of the deepest indoor swimming pools in the world.

A little sculpture with a large wardrobe.

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

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

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

Brussels' favorite peeing boy has a sister.

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.

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