A once-abandoned school building converted into a fantastical multi-level art installation and haven for Appalachian artists.

This probably wasn't what Mao had in mind.

A memorial to the murdered Jews of Kaunas.

A kindergarten shaped like a cat with a tail that's a slide.

This magnificent church allows travelers along one of Germany's busiest roadways a chance to rest and reflect.

A stonemason's hilarious revenge came in the form of this peculiarly positioned gargoyle.

This unattributed sculpture in Amsterdam is hiding in plain sight.

What started as makeshift fishermen's housing has grown into a massive, floating community.

A mythically themed self-built sculpture park.

The university library shaped like a giant piece of Swiss cheese.

Study the Alien etchings in this fountain while you refill your water bottle.

A tower-like theater in the Swiss Alps built to withstand the high winds and avalanches of the mountain pass.

A rare, flower-shaped example of Brutalist architecture in Switzerland.

This 170-year-old Swiss guesthouse built into the side of a mountain is best accessed by a cable car.

This smily stone feline is meant to represent a mythical lion that almost destroyed the island of Kea.

Perched on a spindly rock spire in a Greek archipelago, this lighthouse would make a perfect wizard's tower.

Known as the "Dodo Manège," this carousel features a herd of animals that have disappeared—or may be gone soon.

Most-visited and most-photographed slot canyon in the American Southwest.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

The tallest outdoor elevator in Europe rockets passengers on a dizzyingly precarious ride to the top of a mountain.

The statue honors an adventurous seafaring cat.

Hidden in plain sight on a gable between two towers on the roof of shipping firm F. Laeisz' headquarter in Hamburg sits an unexpected bronze sculpture.

A forgotten monument to Yugoslavian freedom.