Place with alleged mystical powers in Old Orthodox Church in Sarajevo.

A haunting exhibit in a wildlife refuge center highlights threatened species and the conservation efforts needed to save them.

A girls' boarding school inspired by the Chicago World's Fair, once abandoned, now restored to strange and scenic glory.

The largest earthwork effigy in the world.

The angel of death appears to weep black tears at this grave marker.

Take a drunken tour inside the world's largest known geode.

The yawning maw of this pagan visage is said to bite off the hands of liars.

An alchemist's "magic door" stands in the middle of a Roman park.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

This head-spinningly bizarre Depression-era art cave is wall-to-wall quartz and Jesus.

Setting this massive marionette aflame rids Santa Fe of doom and gloom for another year.

Where animatronic singing fish go to retire.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

This mosaic-covered bar is brimming with curated curios.

Behind the Cowboy Hall of Fame is a burial ground for good horses and a famed rodeo bull.

Celebrate the history of the rich and truly misunderstood relationship between man and pigeon.

An immersive art experience built by local arts collaborative, Factory Obscura, in the building formerly known as The Womb, a psychedelic arts center founded by the frontman of the Flaming Lips.

America's post-nuclear-attack chambers of Congress.

The gigantic preserved heart of a champion racehorse.

One of Sydney's oldest graveyards hides in plain sight behind a hospital.

Critics argue this boab tree has been mislabeled for the sake of dark tourism, undermining its spiritual significance.

This 4.5-meter-tall statue of a native Australian bird marks Hydro Aluminium's 40th year in the area.

The 25-million-year-old cavities have perplexed people for decades.