This "thrice-cursed" island is allegedly home to Captain Kidd's lost treasure.

The rustic think-space of famed naturalist John Burroughs stands exactly as he left it.

The intriguing personal collection of a professional demon-chaser.

A museum designed by and dedicated to P.T. Barnum in the town where he is buried.

This once-private estate is now a dreamy, meditative garden that's open to the public.

A collection of haunted artifacts chronicles the career of the world's most famous paranormal investigators.

This abandoned psychiatric hospital once housed more than 4,000 patients in the middle of a quaint New England town.

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

The home of one of America's most wealthy industrialists is now a historic site that remembers a more decadent time in the country's history.

Hundreds of numbered stakes hidden in the woods mark the graves of the lost souls of a nearby asylum.

This whimsically unique butterfly farm focuses solely on creating habitats for the gentle insects.

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

100 massive sculptures in the Hudson River Valley.

The attic and basement house two museums stuffed with oddities like swallowed spoon handles and a shrunken head.

The abandoned husk of a mental institution that failed to save a Jazz Age icon still sits nearly unchanged.

Protecting the future of some of the rarest and most misunderstood mammals of North America.