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

Panoramic views of the city of New Haven and the Long Island Sound, with a side of history.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

A few stone foundations and an old graveyard are all that is left of this once thriving settlement in the wilds of Connecticut.

An abandoned Depression-era zoo hidden just off the highway.

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

Ruins of a historic medical facility sits eerily by the water.

The ruins of an abandoned 18th-century town that is slowly being reclaimed by the forest.

137 graves holding New England's earliest residents.

A former copper mine which became a truly unsuccessful prison.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

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

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

A wunderkammer hidden on the top floor of the Hartford statehouse.

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

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

The intriguing personal collection of a professional demon-chaser.