The cruel trial of a 13-year-old boy inspired the creation of this now abandoned reformatory.

This abandoned bootleg attraction was built to cash in on the popularity of classic TV show, F Troop.

A former zoo turned public park, where visitors can hang out in the old animal cages.

The bears may be gone, but their old cages can still be found.

This mouldering abandoned mental hospital was once a center for progressive healing.

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

This forlorn park is the result of a failed investment turned tax dodge.

One man's ambition created this psychedelic log home.

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

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

This vacant church in the Financial District was once the heart of New York's first Syrian immigrant community.

This abandoned ironworks was once the most important military supplier in America.

These World War I shooting range tunnels are now haunted halls of underground graffiti accessed through the roots of a tree.

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

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

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

This abandoned factory on the Hudson River once churned out a million bricks a week.

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

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

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

The ruins of a Florida miracle spring resort make it seem like a wonder that this was ever a health spa.

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

After hundreds of years of settlement, this once-bustling fishing village sunk into the Chesapeake Bay.

Disney World's very first waterpark is now an abandoned ruin being reclaimed by the swamp.