This supermarket is suspended 25 feet above an interstate highway.

The world's largest piece of copyrighted artwork.

Solar powered Spectacle Island features all-green facilities.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

The largest body of water in Massachusetts annihilated four small towns just to slake Boston's thirst.

Civil War Fort on an island in the Boston Harbor.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

Bouncing, delightful, mechanical art at the MIT Museum.

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

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

Ice cream stand, snack bar, and time capsule of milk conveyance.

The bears may be gone, but their old cages can still be found.

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

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

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.

Impossibly life-like natural history models created out of glass by a father and son.

"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."

Experience the hysteria of a 17th century witch hunt through goofy reenactments and wax dummies that should probably be burned at the stake.

A New England ghost town features a trail of boulders etched with intriguing life lessons.

Friction between grains of sand cause a curious "singing" sound.

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

Two thousand artifacts from around the world collected by one woman who loved to travel.