This dam in the woods, built by Henry Ford with only manpower and oxen, holds no water and serves no purpose.

Ruins of a historic medical facility sits eerily by the water.

This tiny cluster of abandoned buildings looks like the future of the ghost town - today!

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.

One lonely, modern pyramid has gone from corporate think tank to deserted boondoggle.

From overly ambitious (and eventually abandoned) atomic dream to bustling office park.

The ruins of a creative scholar's fantastical unfinished sanctuary act as his massive gravestone.

Instead of becoming a power plant, this abandoned complex became a massive letdown.

A key producer of charcoal iron in the early 1800s, the structure still stands today.

The remains of this early 20th century refinery loom on a mountainside like a graffiti-covered fortress.

Once a place of peaceful repose, this sanitarium now faces an uncertain future.

This old cement mine has been used as everything from a mushroom farm to a recording studio.

An abandoned 1920s-era stretch of cabins now overshadowed by the 66 Motel.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

A mysteriously abandoned campsite in San Angelo State Park.

One of the largest-ever mental hospitals now sits abandoned, surrounded by 25,000 unmarked graves.

Once America’s most beautiful army base, this abandoned military fort on the coast of Monterey Bay has been left to the elements.

An abandoned concrete jungle surrounded by a lush park.

An eight-sided home built during a brief octagon craze in the 1850s.

A hidden piece of Altoona's railroad history in a long-forgotten abandoned town.

The eerie ruins of a remote abandoned hamlet said to be founded by the survivors of a shipwreck.

The remains of what was once the world's steepest passenger funicular.

This abandoned mine and power plant was built atop land once given to Revolutionary War soldiers.

This abandoned neighborhood is now a park filled with beautiful trees, wildflowers, and hints of its past.