Civil War-era Fort designed to withstand invasion and attack, with tricky traps called "murder holes."

Stolen goods adorn the organ at Old North Church.

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

The first bell ever cast in Boston was cast by Paul Revere...and sounded terrible.

No one messes with the Massachusetts sacred cod, not this time...

Statue commemorating the use of ether in anesthesia.

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

This "life-size" depiction of Mickey Mouse as a half-lobster is both whimsical and a bit creepy, standing guard over the Boston waterfront.

These whimsical works of art tell the story of the city's past and present.

Ralph Waldo Emerson spent two years living here decades before it became a Frederick Law Olmsted-designed park.

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

The ruins of one of the first railroads in the U.S. lie hidden within a neighborhood cul-de-sac.

The homestead of American patriot John Adams.

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

Though a proud Texan, the 41st President of the United States started life in the suburbs of Boston.

The classic Christmas carol was written at this Massachusetts tavern in 1850.

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

This is the house that spite built.

Rising 30 feet in the air atop Quarry Hill, the Old Powder House is the oldest stone building in the state of Massachusetts.

The oldest playground in America.

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

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.

This hidden labyrinth offers walkers some brief peace of mind.

The headquarters of one of the world’s longest-running humor magazines bears a noticeable resemblance to a head wearing a Prussian helmet.