The site of murders and Satanic cult gatherings.

This rare example of a "tidefall" is a spectacular drop from the cliffs down onto the beach.

148 feet long and in the middle of a verdant forest.

A multi-storied adobe complex has been inhabited for more than a thousand years.

Legends surround this jagged rock formation in the New Mexico desert.

First a horse rendering plant, then a 19th century landfill, this beach is full of glass from thousands upon thousands of broken bottles.

A Saint Nicholas-themed ghost town in the Mojave desert.

The ruins of this antebellum sugar plantation are the end result of a Seminole attack during the Florida Wars of 1836.

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

More than five miles of underground passageways.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.

Ancestral Puebloan ruins, natural arches, and box canyons abound in this seldom-visited corner of Monument Valley Navajo Tribal Park.

The largest drain hole in the world.

A once grand hotel is being retaken by the wilderness it once capitalized on.

Who needs fancy modern water slides when this giant North Carolina rock works just as well?

Abandoned bridge hidden deep in the San Gabriel Mountains.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

A stealthy Apache hideaway that became the haunting site of a mass grave.

Despite being one of the most photographed vistas in the Rockies these twin peaks are rightfully known as the "Deadly Bells."

A hollow cement depiction of time's inexorable effect on the human body.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

A natural gas leak provides a flickering flame beneath a waterfall.