One of America's oldest private membership libraries was long one of New Haven's best kept secrets.

The author of Uncle Tom's Cabin was neighbors with Mark Twain while living in this Connecticut home.

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

The US Navy's only submarine museum is also home to the world's first nuclear submarine.

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

This small-town pizzeria won the Hollywood lottery.

This Connecticut chapel is a starkly modern, and surprisingly colorful, architectural rebel.

A vast collection of rare books, manuscripts & extraordinary objects illustrating the history of medicine.

A former copper mine which became a truly unsuccessful prison.

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

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

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.

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

Underground tunnels remain beneath this abandoned mental asylum.

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.

An archival collection of over 2,200 case studies which includes human brain specimens and tumor specimens.

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.

An architecturally unique lighthouse that had to be lifted up and moved to avoid falling in the sea.

The second oldest Jewish graveyard in the U.S. is tiny, with connections to George Washington and Henry Wadsworth Longfellow.

Oldest synagogue in the United States.