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

This sculpture is dedicated to a local therapy dog who later became the official mascot of the 126th Boston Marathon.

These light, hollow rolls have been linked to Acadia National Park since the 1890s.

The highest peak in the state of Vermont has some interesting features.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

Decades after testing the polio vaccine on unwitting patients, this historic mental hospital sits in ruin.

Stay at this storybook estate, featuring Sir Henry Hudson Kitson's masterpiece "Gingerbread House."

The highest point in Connecticut was incorrectly memorialized before surveyors discovered the actual spot.

A short walk through the woods will take you to an unusual flat hill top, used by the Shakers for outdoor worship.

On top of Gibbet Hill lie the ruins of a lavish turn-of-the-century estate that never quite came to be.

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

As state highpoints go, this spot is one of the lowest, but for years it was also the hardest to climb.

Inspiring Herman Melville and Henry David Thoreau, Mount Greylock in western Massachusetts is the highest point in the state at 3,491 feet above sea level.

This mysterious artificial cave has long puzzled New Englanders.

Unlike other abandoned asylums this empty institution welcomes visitors, just don't go in the buildings.

This fancifully decorated Victorian home in New York’s Hudson Valley is the only known fully domed octagonal residence in the United States.

The remnants of a luxurious resort that saw its peak in the 1970s and 1980s has been abandoned since 2009, leaving behind the wreckage of both the hotel and a beautiful ice skating rink.

The world's largest kaleidoscope, designed by a 1960s psychedelic artist.

This once sprawling resort now sits abandoned, filled with graffiti and vibrant colors from an era long passed.

This Central New York ghost town was once a prosperous railroad community.

The bears may be gone, but their old cages can still be found.

Ralph Waldo Emerson spent two years living here decades before it became a Frederick Law Olmsted-designed park.

This supermarket is suspended 25 feet above an interstate highway.