These etchings reveal the history of a long-gone quarantine site.

The headquarters of the famous Yale society.

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

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

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

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

A seasonal movie monster museum featuring wax creations by a relative of one of the original Universal Studios monsters.

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

The intriguing personal collection of a professional demon-chaser.

Underground tunnels remain beneath this abandoned mental asylum.

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