It's good luck to be mocked by this monkey.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

Hamburgers are intensely proud of their tunnel beneath the river.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

One of the most well-preserved castles in Italy also contains a rare medieval example of a port fortification.

On the shores of Lake Garda, the ruins of a Roman villa that allegedly belonged to the poet Catullus.

This winding road through an Italian canyon may be the most scenic drive in the world.

The skulls and bones of thousands of soldiers line the walls of this small Italian chapel.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

Mystic Incan rock piles three miles above sea level.

This 16th-century monastery was founded to cloister the daughters of wealthy local families.

The mysterious "Candelabra of the Andes" could represent anything from a god's trident to a hallucinogenic plant.

An unexpected desert oasis in South America.

You can spot this teeny tiny stained-glass window from the Bonifacius bridge.

Also known as Napoleon's Canal, this waterway was created on the orders of the general, and construction was interrupted by Waterloo.

This Belgian theme park began as a refuge for bored church children and was closed down when a boy lost an arm.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

Germany's longest suspension rope bridge.

A Faraday Cage protects cars from a nearby high-power transmitter.

Now overgrown, these anti-tank barriers from World War II are sometimes called "dragon's teeth."