Paranormal investigators claim this abandoned asylum is the most haunted spot in the eastern U.S.

This ghost town in Belgium will lose its street art when it ceases to exist.

The ruins of a medieval castle that once belonged to one of the most powerful families in the Netherlands.

This church carved into the rocks is full of enchanting stone statues.

A small Byzantine church lost in the middle of the mountains of southern Italy.

This small road tunnel is the only place where you can cross beneath the Erie Canal.

Abandoned rock quarry now a haven for mountain bikers and hikers.

The remains of a failed subway in upstate New York is now an underground graffiti bunker.

This abandoned school has had many lives since the early 1900s, and all of them doomed.

One of the first commercially successful anthracite-powered iron-making operations in North America.

The quarry was abandoned over 100 years ago, after a massive ammunition explosion ended in tragedy.

An unassuming nature trail winds through dozens of tiny houses built for the wee people.

A deteriorating 1990s Girl Scout camp in a beautiful lush park on Lake Ontario.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

A miniature village lies nearly forgotten in the forest by the side of a major highway.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

This tiny church near Sleepy Hollow contains Henri Matisse's last work, a rose window, and nine windows by Marc Chagall.

Charleston's historic city jail once held everyone from pirates to Civil War POWs.

Once luxurious, these oceanfront beach homes have been left to succumb to the elements as the beach is slowly washed away.

The mouldering manses of wealthy colonials still pock the streets of a Curaçao neighborhood.

All that remains of Jacques Cousteau's 1960s underwater "village."

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

Hidden amid a collection of trails is the site of a tragic crash.

One of America's first dinosaur parks gives a window into Depression-era paleontology.