A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

France's most famous cemetery, with some of its most curious tombs.

Try not to get slimed in Tribeca.

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

Costumed elves and mountain bikers co-exist peacefully at this abandoned Christmas-themed adventure park.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

A hotel and restaurant serving as the mecca of kitsch.

World War II-era Nazi compound nestled in the Santa Monica hills.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

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

A modern day curiosity cabinet.

The ghostly remains of an accidental sea.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Left untouched since a double murder-suicide in the 1960s, Los Feliz murder mansion remains a neighborhood mystery.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

On the Oregon coast there is a natural hole that seems to be draining the sea.

Thousands of well-dressed mummies below a monastery.

A one-of-a-kind collection of a unique medium.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

A huge musical instrument played by the ocean.

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

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

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