Distressing images of the Last Judgement adorn the walls of this medieval sanctuary.

Unruly residents were housed in this one-person cell until the Black Maria arrived.

This museum dedicated to the history of the medical bone trade and human osteology.

Hundreds of fiberglass structures line the side of the road in the middle of nowhere.

An unusual slot canyon in the Aztec/Navajo Sandstone has a cross-section like an inverted old-fashioned keyhole.

This arcade is one of the last places to catch a public performance by the now-defunct ShowBiz Pizza's house band of animatronic animals.

This magical grotto is adorned with a complex pattern of native seashells, minerals, and fragments of colored glass.

Enjoy the waters of this half-moon-shaped natural pool surrounded by breathtaking scenery.

The cell which saved the life of Ludger Sylbaris, "the man who lived through Doomsday."

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

According to a gruesome legend, an architect sacrificed his wife to build this spectacular, 16th-century cathedral.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

This small, nautical gift shop is home to a 500-pound behemoth.

A museum celebrating rare American motorcycles where everything runs—and none of it quietly.

18m long sarcophagus of a constantly growing dead prophet.

In the mountains of West Virginia is this perfectly preserved Art Deco train station.

Hidden in the hills of Western Pennsylvania lies one of the best-kept ghost towns in America that you can legally visit.

A forsaken wonder in the middle of the East Side neighborhood.

Fascinating military history, awe-inspiring wildlife encounters, and endless outdoor adventures draw people to this sprawling park.

Hands-on activities, childbirth artifacts, and a library are all part of this tiny, one-room museum that examines motherhood and women’s roles throughout history.

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.

This remote Colorado canyon is home to the second-largest collection of natural arches in the world.

This observation tower is one of two of its kind that still exist in the United Kingdom.

This secret Swiss fortress is disguised as a harmless pink house, complete with fake windows.