This miniature feudal castle was built on a whim to honor a US Navy pioneer.

The ruins of a Massachusetts prison farm can still be found crumbling the woods of a state park.

The walkable ruins of an 19th century hotel, destroyed in a horse cremation gone wrong.

The sprawling, eccentric estate of Ames and Ames, a brilliant botanist, and a genius inventor and artist.

A New England ghost town features a trail of boulders etched with intriguing life lessons.

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

A 30-acre garden inspired by the principles of modern physics.

A museum dedicated to "science, history and the arts" little changed since 1915.

The first evidence of some of the Earth's earliest life was found in this fossilized undersea grotto.

This throwback amusement park is home to rides and unique storybook figures from the past.

This folk art dinosaur was almost pushed to extinction due to lack of a building permit.

Carved, egg-shaped stone with no explanation.

Beautiful natural falls where Satan once ruined a pot of beans.

Small rustic cabin nested in the mountains of Killington, Vermont.

The railroad tunnel nicknamed the "Bloody Pit" for taking the lives of hundreds during its construction.

Taxonomy experiment known for quirky collections.

The building that inspired Shirley Jackson's "The Haunting of Hill House."

This historic folk museum celebrates the attention to detail that makes America great.

Antique gaffe kept in the basement of a small Vermont natural history museum.

The former estate of the Guggenheims, part of the opulent Gold Coast that inspired the Great Gatsby.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

The home of one of America's most wealthy industrialists is now a historic site that remembers a more decadent time in the country's history.

An abandoned Gold Coast-era mansion once intended for the exiled ruler of Albania, who never arrived.

This once-grand marvel of engineering is now 41 miles of scenic hiking trail.