This Dutch-styled residential building was originally a cocoa company's World's Fair showpiece.

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

This massive boulder is inscribed with the story of a sensational hostage negotiation dating back to Colonial times.

The Atlantis of Cape Cod reemerges during the lowest of tides.

This mysterious artificial cave has long puzzled New Englanders.

Sacks of potatoes, made of cast stone, mark where the iconic potato sheds once stood along the river.

One of America's most historic homes also holds a startling literary legacy.

This headstone-like marker inscribed with three words has been an utter mystery for over a century.

The oldest surviving wood-frame building in North America is still in the family.

An elaborate, hidden model train in the Needham Town Forest.

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

This rare symbol of Eastern philosophy in the West has been created over years of painstaking construction by the local community.

A more than 260-year-old crypt built on Boston's oldest English burial ground.

This cemetery served as the only official burial grounds in Cambridge for nearly 200 years.

Historic Hull Street was actually the first street with a proper name in the Boston area.

The remnants of a Gilded Age elegance preserved in the middle of a stark modern tower.

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

Bouncing, delightful, mechanical art at the MIT Museum.

This candy-colored storybook village originated as a 19th-century Methodist campground.

It was an experiment to prove that glacial boulders and rocks can be used in constructions and dwelling.

Hut with supplies for shipwreck survivors.

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

On a former island, this old fortification once used to protect the Boston Area and started Edgar Allan Poe in his military career.

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