Legend says if you stick your thumb in the hole and it gets wet your wish will be granted.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

A charming beach town in Turkey captures all the colors of the rainbow.

While not Turkey's deepest underground city, this subterranean redoubt is the largest.

The ancient latrines of the Greeks, in all their public glory.

The oldest apple tree in the Pacific Northwest.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

The world-record holder for the longest bridge stretching continuously over water.

This old-fashioned roadhouse's quirky neon sign is as famous as its enormous dumplings.

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

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

Now containing the bones of the actual conquistador, instead of someone else.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

A blacklight mini-golf fever dream pays tribute to the iconic rock band.

Dubbed the "Blade Runner dragon," this buzzing neon sign is a beloved local icon.

Follow the original medieval paths that wind through this intriguing section of the city.

This memorial to World War II's fallen airmen shows us the movements of the stars that once guided them.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

The unedited photograph called "Bliss" has graced the screens of over a billion computers.

From overly ambitious (and eventually abandoned) atomic dream to bustling office park.

A Roman-style column in Oregon hides a spiral staircase inside.

The world's largest dead polar bear, immortalized by taxidermy and Hunter S. Thompson.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

Arguably the best example of an authentic Dutch windmill in the United States, rivaling its counterparts in the Netherlands.