This abandoned asylum in Wales might look haunted, but it's still beautiful.

The church and nearby castle are all that remains of a medieval village, mysteriously abandoned.

A crumbling mountain resort that looks like it was abandoned in an instant.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

The Grand Canyon’s original airport, which once welcomed pilots like Amelia Earhart and Charles Lindbergh, lies abandoned.

A long-abandoned provincial prison left to crumble in the frigid air of Ontario.

A boardwalk winds above this beautiful bog full of wildlife and a rare type of turtle.

Canada's oldest sugar maple has been growing since around 1500.

A memorial to the tens of thousands of Irish who fled to North America during the Great Famine.

The Incredible Hulk, Yoda, Mulder and Scully, and many many others watch over the mean streets of Toronto.

An abandoned logging settlement nestled in the woods near a popular ski town.

An abandoned skate park located in the middle of the wilderness.

On a small Puerto Rican island, banks of secret naval bunkers lie abandoned and filled with piles of office equipment.

This small fort played a huge role defending Puerto Rico’s capital city.

Rusting, graffiti-covered tanks litter the beach of this island, once used by the U.S. military for target practice.

This forgotten building was one of the few Philadelphia-area breweries to survive Prohibition.

The ruined remains of a coal mining ghost town are hidden within the woods.

The graffitied ruins stand hidden within the Pennsylvania woods.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

Toxic waste disaster that founded the Superfund program.

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

An abandoned castle owned and ignored by Masons carries a cursed history.

This dilapidated castle-like structure overlooks the Hudson River at one of its widest points and was once home to nuns.

A long abandoned hospital building on the outskirts of NYC.