Beloved children's TV characters freckle the German city's streets.

A lush oasis full of vibrant plants and striking geometric displays.

These small, triangular, colorful houses are a staple of Madeira Island.

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.

As can be expected from a centuries old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

Go inside to really appreciate this 500-year-old technological masterpiece.

A copy of the Statue of Liberty greets visitors to the birthplace of Auguste Bartholdi.

The castle was reconstructed to fit Kaiser Wilhelm II's romanticized vision of the Middle Ages.

There has been an astronomical clock on this spot since the 14th century.

Visitors dating back to the 1600s carved their marks in the stones of the iconic tower.

Explore this medieval cathedral by trying to spot all the malevolent monsters hiding in its beautifully colored windows.

Men in rubber-soled boots serve as your "brakes" on this toboggan ride Hemingway described as "exhilarating."

This unique building in the main square stands out among the city's typically Baroque architecture.

This centuries-old gothic monster has been converted into a sprawling, glossy bookstore.

The tallest mountain in mainland Netherlands isn't actually very tall.

A beautiful maze marks where three countries meet.

A statue honors the local legend that the devil helped build St. Mary's church after being tricked into thinking it was going to be a wine bar.

Dancing skeletal figures pay homage to a medieval mural destroyed during World War II.

A stunning two-story timepiece within a medieval Brick Gothic church.

This abandoned five-star hotel is now a five-star urban exploration destination.

An abandoned NSA listening post on Berlin's "Devil's Mountain."

Portugal’s highest lighthouse has one of the most impressive focal planes in the world.

This glass skywalk offers vertiginous views down the volcanic cliffs to the beach below.

Preserved "bog person" that is over 2,000 years old.