This dam in the woods, built by Henry Ford with only manpower and oxen, holds no water and serves no purpose.

The mighty room where the poet spent most of her life is available to rent for an hour or two.

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

One of two lighted lanterns hung in the church belfry on the eve of the Revolutionary War to warn that the British were on their way.

Colorful clay cliffs tower over an unofficial nudist beach on Martha's Vineyard.

The pleasant woodland cemetery that has inspired more than its fair share of wild legends.

This Cape Cod museum exhibits what it claims is the only authenticated pirate treasure in the world.

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

A coastal rock outcrop with mysterious inscriptions variously attributed to Native Americans, Portuguese, Phoenicians, Norse, and more.

The homestead of American patriot John Adams.

The filming location of a shark attack in Steven Spielberg's famous shark movie.

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

"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."

Narrowest house in Boston.

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

Life-size bronzes of the Grinch, Cat in the Hat, Yertle the Turtle, Sam-I-Am, and the Lorax—and the author himself.

A historic bridge with a lovely acoustic anomaly.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

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

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

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

No one really knows how these old hobby horses got here, but the herd keeps growing.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

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