For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

Mother Nature outdoes herself with this stunningly beautiful set of caves carved into marble.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

An exquisite tunnel of cascading flowers.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

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

There's a mini version of Iguazu Falls hidden in the Balkans, and it's got a rope swing.

An ethereal glowing blue ocean cave in Croatia.

This cluster of little wooden huts once ground local farmers’ wheat into flour during the days of the Austro-Hungarian Empire.

This Croatian fairytale castle is slowly falling apart thanks to years of neglect.

An eclectic art form practiced by untrained masters is celebrated at this museum in the heart of Zagreb's old Upper Town.

An abandoned saucer-shaped monument in the Bulgarian mountains.

In a long-dry lake bed, these groups of massive stone pillars bear a striking resemblance to clumps of everyone's favorite fungi.

An architectural marvel that spans the Arda River, and has stories of a haunted past.

A spectacular Bulgarian cave resembling a devil's head with a waterfall rushing down its throat.

A restaurant modeled after feudal Japan, where the waitstaff are trained as ninjas.

Fine dining in the bizarre world of Lewis Carroll.

A tiny cafe that recreates the Japanese elementary school lunch experience.

A Japanese concept restaurant that feels like a party thrown by the monsters in your closet.

Drinkslinger is an unlikely vocation for a Buddhist monk, but at this Tokyo bar the enlightenment is served in a martini glass.

Experience the hysteria of a 17th century witch hunt through goofy reenactments and wax dummies that should probably be burned at the stake.

Sleep in a climate-controlled plastic bubble for the night.

A miniature diorama that recounts the brilliant stories of author and filmmaker Marcel Pagnol.

Monsters and miniatures are held in equal esteem at this wondrous museum.