These pretty kitties killed and ate as many as 135 railway workers.

This grave in a ghost town cemetery marks the death of a witch on a day that never happened.

Walk through the actual strap iron cells and solitary chambers of Arizona Territory’s first prison.

The statues commemorate the legendary mass killing of escaped circus monkeys.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

The creek where a shark wreaked terror upon New Jersey, and served as the inspiration for "Jaws."

This graveyard contains markers and monuments dedicated to some of the darkest chapters in Washington's history.

The largest dinosaur trackway in North America is tucked away among this canyon's ghosts and archaeological gems.

Wee (and not so wee) footprints that insects and reptiles of the Paleozoic Era left behind.

These mysterious petroglyphs in Vermont reflect a troubled history in the treatment of Native American culture.

The remains of a 19th century spring, and the site of an infamous unsolved murder.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

The largest island on the great salt lake is home to curious creatures and strange stories.

This landmark cemetery in Boston was created more than 300 years ago.

This Nevada lake holds its titular natural pyramid and, if the legends are true, a number of dangerous spirits.

This ghost town was once a cult-like religious utopian settlement.

This scenic gorge is named after one of the most famous Bigfoot attacks in pseudohistory.

Eulogizing an unknown man's unusual demise.

A preserve with 75,000 ancient drawings remains the realm of public – not just scientific – exploration.

The ancient past meets the retro-future at these dinosaur tracks that are protected by a geodesic dome.

A perfect circle of twenty-four mysterious holes dates back to prehistoric time.

The ruins of an abandoned 18th-century town that is slowly being reclaimed by the forest.

A mysterious spirit totem at the edge of Navajo lands.

This strange hill on Old Fort Road where gravity works in reverse has been fascinating locals for years.