This headstone-like marker inscribed with three words has been an utter mystery for over a century.

Louisa May Alcott based “Little Women” on her experiences growing up in this house with her sisters.

This rare symbol of Eastern philosophy in the West has been created over years of painstaking construction by the local community.

An elaborate, hidden model train in the Needham Town Forest.

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

An 80-year-old house built out of newspapers.

The homestead of American patriot John Adams.

Overgrown ruins of a turn of the century island fort that sees very few visitors.

Massachusetts memorial to murder victim Elizabeth Short near the spot where she was born.

It was an experiment to prove that glacial boulders and rocks can be used in constructions and dwelling.

Resonating tubes make music from highway overpass.

The site of the first "historically true" UFO encounter in the U.S.

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

Books you don’t need in a place you can’t find.

The history of the tea trade is told in bas-relief on this historic pair of Boston doors.

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

The former locus of Boston's high culture has been shuttered and buried for over 70 years.

Beautiful steampunk ghosts of early Massachusetts.

Located just behind a quiet residential neighborhood, this is ground zero for the Salem witchcraft hysteria of 1692.

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

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

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

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

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