A 60-room castle constructed by a horse-racing heir.

This lighthouse was witness to the end of WWII hostilities and now collects creepy cairns.

You can spend the night as an honorary lighthouse keeper in this quaint, historic beacon.

Mysterious stone tower featured in many alternative histories of the New World.

A railroad magnate's replica village has become home to a genetic seed bank for rare breeds of livestock.

This Rhode Island mansion was a stand-in for the exteriors of Collinwood in the original "Dark Shadows" series.

The oldest still-operating tavern in the United States was once owned by a pirate.

This 3,500 pound obelisk was constructed with more than 1,000 reclaimed guns.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

Books bound in human skin and H. P. Lovecraft's letters are among a few of the treasures this library has to offer.

Unicorns, elephants, and bears, oh my!

A 19th century library favored by Edgar Allan Poe and H.P. Lovecraft, known by locals as "the Ath."

This tribute to the founding father of the American dictionary originally contained a spelling error.

A tribute to the truly loyal dog who waited outside a hospital for his owner to come back.

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

More than a century of radio history is told in these displays.

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

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

The world's largest public collection of PEZ memorabilia.

This small-town pizzeria won the Hollywood lottery.

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

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

An iconic steel and chrome diner from the 1940s left empty for nearly 20 years is in danger of being demolished.

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