A spooky and decrepit mental health facility is slowly being replaced with newer digs.

Painstakingly built dioramas sit unnoticed in a Boston office building.

It's not a typo, now say it five times fast!

America's original house of worship for Spiritualism, the religious movement based on communing with the dead.

A mysterious collection of stones stand outside a small New England town.

Naturally formed white marble arch housed in an abandoned marble quarry from the 1800s.

Locals purchased this abandoned quarry in order to make sure it continues to be overgrown.

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

Palatial mansion estate used in films including "Flowers in the Attic" and "The Witches of Eastwick."

Trash escaped from a landfill to fill beaches with all kinds of treasure.

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

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

Beautiful steampunk ghosts of early Massachusetts.

The Mysterious Witch Bonney, a haunted statue in an old industrial city.

This small section of the Sleepy Hollow Cemetery is rotten with famous authors' graves.

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

A museum dedicated to the quirky and colorful world created by Springfield's favorite son.

Over fifty whirling pools left by the glacial age.

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

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.

Three prestigious academic collections come together to create a world-class natural history museum.

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

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