Once the future of underwater combat, this old sub is now open for visitors to muck around in.

These impressively detailed battle scenes depict the violence and tragedy of war in miniature.

This supermarket is suspended 25 feet above an interstate highway.

A steampunk wonderland that preserves America's history of industrial innovation.

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

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.

This peaceful Massachusetts graveyard was one of the first "garden-style" cemeteries in America.

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

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

"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."

The site of Paul Revere's historic two lantern warning.

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

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

A historic bridge with a lovely acoustic anomaly.

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

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

Three prestigious academic collections come together to create a world-class natural history museum.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

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

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

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

A beautiful Victorian-era cemetery, complete with a miniature village.

The only structure left with direct ties to the Salem witchcraft trials of 1692.