This mysterious artificial cave has long puzzled New Englanders.

A tiny monument to the classic American candy.

At the supposed instruction of Ben Franklin and Socrates, a Spiritualist believer intended to birth a mechanical messiah here.

The oldest working bell set in North America, the bells at Old North Church sat silent for their first four years in Massachusetts.

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

Civil War Fort on an island in the Boston Harbor.

Hut with supplies for shipwreck survivors.

According to legend, Bob Dylan sneaks in twice a year to eat dinner with Jack.

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

This picturesque abandoned home is rumored to be a spite house.

This railroad tunnel was once the longest in Massachusetts.

This is the house that spite built.

From economic backbone of a community to deadly diving hole, these former stone quarries are now a park for rock climbers and graffiti artists.

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

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

This tiny, painted door at the base of a tree stump has been a fixture of the Harvard University campus for decades.

Eclectic collections, artwork, and some feline friends fill the writer's former home.

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

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

35,000 grape hyacinths flow like water down a garden hill.

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

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

An enormous, inside-out glass globe built in 1935.

This 3,500 pound obelisk was constructed with more than 1,000 reclaimed guns.