One of the world's largest collections of medieval religious art.

The final resting place of more than 200,000 people, this is one of the largest cemeteries in Europe.

The walls and ceiling of this Polish church are decorated with thousands of skulls, with another 21,000 skeletons just below.

Rat sculptures try to infiltrate the Graybar Building in an architectural tribute to New York City's nautical history.

New York's unstoppable progress turned this cemetery into the smallest burial ground in the city.

More than 250 sakes are available in an izakaya hidden in the basement of a Midtown office building.

Become a prohibition rebel.

The fountain marks the area where hundreds of accused witches were burned at the stake.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

Legends, sculptures, and unique tombs can be seen lurking in these connected cemeteries.

In this breathtaking canyon, crocodiles bask on boulders and glide through the murky waters.

A museum built around the site where the most controversial human remains in the country were found.

A field of whimsical floats, where all of your favorite childhood stories have been put out to pasture.

One man's personal collection of more than 2,000 creepy-crawlies from around the world.

A sprawling network of century-old subterranean catacombs lies beneath a nondescript suburban home.

This house covered in art created with volcanic rocks is shrouded in macabre lore.

An impressive if morbid collection of mummified remains from different eras of the region's history.

The jewel of the museum is a rare tumulus, a funeral decoration from the 18th century.

This dreamlike museum is filled with the works of an influential surrealist artist whose name you may have never heard.

Once a year in Pomuch, the dead are taken out for a cleaning.

One of the world’s largest cave systems houses legends, concerts, and wondrous rock formations alike.

A fairy garden in an old hotel hidden in La Marquesa forest.

Mexico's largest collection of masks is found in the ruins of an abandoned convent.

This church devoted to Mexico's "dead saint" is a festive celebration of a formerly hidden religious figure.