These red marks, seemingly placed at random, are in fact not.

Small French town or alien garage?

The world's tallest bridge is also possibly the most elegant.

The ruins of a medieval castle linked to the murderous French lord that inspired the famous legend of Bluebeard.

This submersible road connecting a French island to the mainland is lined with safety towers for when the tide strands travelers.

Home to 10,000 medical specimens including the remains of Rudolf Virchow's extensive collection of pathological specimens.

The only remaining collection of flayed figures made by French "madman" Honoré Fragonard.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

This stunning French estate was so lavish that it landed its original owner in jail for the rest of his life.

An unusual sand beach in the middle of a forest.

The opulent home that inspired Tintin's Marlinspike Hall and the adventures within.

The experimental test tracks of a retro-futuristic monorail still stand in the French countryside.

A little sculpture with a large wardrobe.

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.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

One man's remarkable private collection of art from around the world.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

The world’s first museum dedicated to the history of childhood opened in Edinburgh in 1955.

The most loyal of little dogs, or a Victorian era publicity stunt?

A sweet symbol marks the place where torturous executions were once carried out.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

A book bound in the skin of an infamous criminal, along with countless other specimens.