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

A former copper mine which became a truly unsuccessful prison.

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

With some 500,000 books across five buildings, this bookstore is a reader's paradise.

The ancient past meets the retro-future at these dinosaur tracks that are protected by a geodesic dome.

Underground tunnels remain beneath this abandoned mental asylum.

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

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

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

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

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

The tennis legend used this racket while breaking the race barrier and becoming the first Black man to win the US Open.

The vaguely man-shaped root that ate the body of the founder of Rhode Island.