This decrepit abandoned building is made all the more eerie by its dark history.

A quaint museum nestled in a former hub of Irish moss harvesting.

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

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

This stone tower in a small town's graveyard looks as though it would be more at home in a fairy tale.

One of the largest public collection of historic armored and military vehicles in North America.

This old mill and former police station now present a world-class collection of Orthodox iconography.

This little-known rival to the Library of Congress houses one of the largest collections of pre-1876 American books, newspapers, and manuscripts.

This delicate museum is devoted to the art and industry that once supported Cape Cod's oldest town.

Rumored to have tormented a family in the late 1960s, this toy now resides in a quiet little oddities shop.

Artifacts of whaling, with both its perils and adventure, are housed in this museum in a former candle factory.

This massive World War II calculator hearkens back to the days when "computer" was a job title.

A careful eye can find hundreds of dinosaur tracks running along the Connecticut River.

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

A dollhouse full of taxidermy rodents, each one handcrafted and given a sordid past.

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

American revolutionaries and British soldiers alike are buried here in the fourth-ever cemetery in Boston.

Civil War Fort on an island in the Boston Harbor.

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

The homestead of American patriot John Adams.

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

Home to the Titanic Historical Society's collection.

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

Painstakingly built dioramas sit unnoticed in a Boston office building.