A church filled with the bones of hundreds of virgins martyrs—or so they say.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

NYC's legendary underground network for bovine transportation.

The ghost town that ended up on Ebay.

The Cathedral of St. Ambrose has been hiding a special parishioner within its walls.

This ancient village and its adjoining cemetery have a beautiful history of death and remembrance.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

On October 17, 1814, a 15-ft. wave of beer ran rampant through the streets of London.

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

Indents in the pavement are all that remain from a grisly death machine in Paris.

This bridge was constructed from the rubble of the infamous Bastille.

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

The vast, legendary catacombs hold secrets much stranger than stacked bones.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

A hands-off space for graffiti artists to hone and display their skills.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

Fascinating town where normal life interfaces with the occult.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

London's smallest police station is barely the size of a phone booth.