Once a 19th-century brasserie, this McDonald's exterior celebrates Alsatian design and the "King of Beer."

This crack in France's seaside cliffs once hid a sinister secret.

Ivy-covered Medieval tunnels cut through this charming town in France's Loire Valley.

Fortified medieval tower house with lovely roof garden.

A local student's chance encounter with Keith Haring led to the creation of one of Europe's largest murals.

This amazing medieval fortress stands atop a promontory along the famous Cinque Terre.

The bomb-ravaged remains of of a colossal Neptune.

This tiny chapel withstood a massive mudslide and flash flood.

Perched above a grotto, this tribute to Mother Nature looks out into the ocean.

A tribute shrine where the Space Invasion street art movement started.

Climb a steep hill in 90 seconds on the second-oldest urban subway in the world.

A massively oversized measuring tape sculpture sits inside a hidden yard.

This small island, a byproduct of 19th-century canal construction, is now home to a charming Japanese garden.

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

An atmospheric, medieval-themed book store hides in a 13th-century underground space.

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

One of only a handful of seaside temples in Korea, this sacred space is home to a legendary healing Buddha statue and a traffic safety prayer pagoda.

An all-female order shares an ancient culinary art with visitors at their mountaintop monastery.

This pagoda was once the central feature of a Buddhist temple that no longer exists.

This structure atop a craggy cliff in one of the most beautiful parks in Paris boasts an unbeatable view.

Ordinary art transforms to extraordinary thanks to locals' quirky sense of humor.

The narrowest street in Paris.

This medieval tower is all that remains of the castle where Joan of Arc was held before being burned at the stake.

Two small chapels housed inside an ancient tree.