The Hudson River School comes alive at this palatial estate.

The filming location of a shark attack in Steven Spielberg's famous shark movie.

What was once a trend-setting, phrase-coining icon of architectural splendor is now a rotting, forgotten hulk.

An Escher-inspired library dedicated to the wonders of the human mind, yet closed to the public.

Inspiring Herman Melville and Henry David Thoreau, Mount Greylock in western Massachusetts is the highest point in the state at 3,491 feet above sea level.

Home of Philip Johnson, one of the 20th century's most influential architects.

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

A beautiful Victorian-era cemetery, complete with a miniature village.

Located in a beautifully restored ice house, this museum is the result of decades of hard work and devotion to the craft of plumbing.

This historic railway museum may have lost its passengers but not its love for trains.

An unrealized dream to wirelessly electrify the entire Earth.

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

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

Locals purchased this abandoned quarry in order to make sure it continues to be overgrown.

The intriguing personal collection of a professional demon-chaser.

A coastal rock outcrop with mysterious inscriptions variously attributed to Native Americans, Portuguese, Phoenicians, Norse, and more.

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

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

Unicorns, elephants, and bears, oh my!

The exact whereabouts of this surreal cabinet of curiosities are rarely the same place twice.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

250-year-old farm now features sculptures, a petting zoo and a hippy-bazaar.

The kind of mixed-up place that drives archaeologists crazy.

Underground tunnels remain beneath this abandoned mental asylum.