This evocatively named natural crevasse was created by a torrent of water that smashed right through a granite deposit.

Eat first, shop later at this eatery within an Asian grocer.

This hidden labyrinth offers walkers some brief peace of mind.

This mysterious artificial cave has long puzzled New Englanders.

A defunct all-girls college which may be the resting place of H.P. Lovecraft's real-life Necronomicon.

A museum dedicated exclusively to the lore and history of ouija boards.

A stunning garden filled with fantastical environmental folk art and sculptures.

This roadside attraction attracts kids with dinosaurs before blindsiding them with geology.

Shelves covered in dozens of coffee bean varieties fill this North End institution.

The macabre graffiti spectacle in a quarry in a Massachusetts forest reservation.

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

A cave dug by a man directed by ghosts to find pirate treasure.

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.

The headquarters in Salem doubles as an occult art gallery.

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.

Dim sum, served in a grand old theater.

One of the now-less-hidden floral gems of the "Emerald Necklace."

19th-century operating theatre in which the use of ether was first demonstrated - plus, a skeleton and a mummy!

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

The Boston square dedicated to the dark poet who was born nearby.

An eccentric inventor's castle home with its own indoor weather system.