This abandoned 19th century orphanage started as a boarding school for children of Civil War veterans.

Despite repeated attempts to make it work, this former mining town is now nothing but dust and memories.

The museum moved on, but the diorama remain.

At one time this small mining village was the highest town in America but now it sits abandoned while the mine churns on.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

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

The "Fun Spot of the Desert" is now a haunting ruin, and a reminder that putting a water park in a desert is a bad idea.

Ruined pieces of stone and a swimming pool are all that remain of an amusement park swept away by a flood.

This abandoned Civil War fortress is slowly being swallowed by the waters of Lake Borgne.

This abandoned prison castle has become an imposing gallery of graffiti art.

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.

The second tallest railway trestle bridge in America.

This abandoned cemetery has a dark past of bodies buried over bodies.

Bad farming practices caused this unnatural natural wonder.

This once bustling boomtown hotel is now the hottest spot in Nevada for ghost hunters.

One man's ambition created this psychedelic log home.

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

Nine of the very few concrete ships ever made in the U.S. are beautifully decaying off a Virginia pier.

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

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

An FDR-era tuberculosis sanatorium has stood abandoned in the suburbs of the U.S. capital for over 30 years.

The haunting remains of a failed housing development can still be found behind the big box stores that were to anchor them.

Despite being made of a seashell mortar, the crumbling remains of this historic Florida mill are still standing.