These "anatomical machines" are only one of the many strange items in this Italian crypt.

An underground paleo-Christian burial site composed of the remains of several cemeteries and Basilicas.

Skulls from the plague of 1656 and World War II bombings are united by a cult dedicated to caring for the ancient dead.

A lovingly curated curio shop in which the taxidermy wear newspaper party hats, and peanut shells are spread across every surface.

The peaceful gravesite of a rugged wild west gunman echoes the touching story of his last days.

Step back in time and witness the fall of Constantinople.

Large miniature theme park with 100-plus models.

Teeming with illegal goods and services, this towering maze of vice is also a popular tourist accommodation.

Fascination continues to surround one of history's most infamous shipwrecks.

Japanese island famous for poison gas and fluffy bunnies.

Once the most densely populated place in the world, this island is now a ghost town.

Appropriation-friendly collection of books, periodicals, and more.

Ever hear of the Milazzo Cage?

This picturesque mansion has gone from opulent ruin to nature museum.

On Japan's Tashirojima Island, cats are king.

The world's largest collection of witchcraft regalia.

An indoor miniature village and labor of love for Laurence Geiringer, a model railroad enthusiast.

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

At the crypt of St. Mary of Eulogies and the Dead you are left alone to ponder mortality among piles of skulls.

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

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

Prison made famous by The Shawshank Redemption has been out of commission since 1990.