Ornate and macabre headstone in one of the country's oldest cemeteries.

Colorful clay cliffs tower over an unofficial nudist beach on Martha's Vineyard.

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

This historic patch of real estate offers a glimpse of colonial Boston.

Where Eunice Williams was murdered by natives, and where locals say her ghost still haunts.

At the supposed instruction of Ben Franklin and Socrates, a Spiritualist believer intended to birth a mechanical messiah here.

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

Civil War Fort on an island in the Boston Harbor.

A defunct all-girls college which may be the resting place of H.P. Lovecraft's real-life Necronomicon.

This nearly 200-year-old restaurant's history includes an exiled French prince, JFK, and a very hungry Daniel Webster.

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

This abandoned radar station from the Cold War era now only broadcasts a seriously ominous air of isolation.

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

One of two lighted lanterns hung in the church belfry on the eve of the Revolutionary War to warn that the British were on their way.

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

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.

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

One of the indelible moments of the American Revolution took place at this location.

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

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

This mysterious artificial cave has long puzzled New Englanders.

One philanthropist's extensive collection of knick-knacks and curiosities is now a public museum of oddity.

A mysterious stone embedded at the base of a historic Boston building.