Collapsing castle on the Hudson river was once the storage site of military surplus business.

This abandoned cemetery is crumbling into ruin, exposing the artifacts and bodies buried there.

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

Home to the abandoned Tioronda Hat Works Factory, this park is a combination of woodlands and marshlands.

A 19th century hat factory still stands as a crumbling ruin in upstate New York.

An abandoned asylum once on the cutting edge of lobotomies may be reborn as a Christian college.

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

Stare out over the lagoon and beyond from this 10th-century campanile on the island where the city of Venice began.

An abandoned tuberculosis hospital said to be haunted by the patients who died within its walls.

An abandoned Jewish sanatorium is tucked within the woods of Poland.

A once-abandoned school building converted into a fantastical multi-level art installation and haven for Appalachian artists.

Locals believe this abandoned ruin on the outskirts of Bucharest is haunted.

This 150-year-old train station and caboose have been turned into a railroad museum, enjoyed by young and old alike.

Built in the 1970s, this curious modular home found new life as a sundae-shaped ice cream stand.

This strange, small castle on the bayou has withstood the test of time and weather.

A private museum dedicated to preserving the heritage of Mardi Gras' most beloved underdog parades, open by appointment.

Inside this art and oddity-filled shop, a small room filled with secrets.

A nearly century-old amusement park is quietly decaying in a riverside forest in South Carolina.

The once abandoned ruins of a Victorian beachside amusement park are now back in working order.

This abandoned amusement park was built on a site with a dark history.

This disastrous New Jersey safari park saw animal attacks, escapes, and disease before being abandoned.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

Visitors are welcome to enter this lush Key West sanctuary to entertain its plethora of rescued parrots.

The chefs at El Diablo use heat generated by an active volcano to cook the food.