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

A rock outcropping left by a glacier that made itself useful throughout the centuries.

A careful eye can find hundreds of dinosaur tracks running along the Connecticut River.

Hundreds of personalized inscribed planks make up this historic boardwalk.

A hugely vast Irish landscape of barren rock that stretches for miles.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

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

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

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

The railroad tunnel nicknamed the "Bloody Pit" for taking the lives of hundreds during its construction.

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.

One of the most scenic falls in Massachusetts has a history of death and grim legend.

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

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

Elevated freight railway turned wildly successful urban park.

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

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

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

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

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

Where Eunice Williams was murdered by natives, and where locals say her ghost still haunts.

Over fifty whirling pools left by the glacial age.