Supposed Massachusetts Grave of a pre-Columbus Knight Templar.

The birth home of one of cinema's legendary actresses.

America's "second most important bell" is a contentious spoil of the Civil War.

According to legend, Bob Dylan sneaks in twice a year to eat dinner with Jack.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

This small section of the Sleepy Hollow Cemetery is rotten with famous authors' graves.

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

Memorial of the Salem witchcraft hysteria in the town of Danvers, where it all began.

This historic graveyard monument is dedicated to a tragic victim of witch trial hysteria.

New England's "Witches of Eastwick" locations, in all of their quaint white churched glory.

A cave dug by a man directed by ghosts to find pirate treasure.

Site of a famous 19th-century transcendentalist utopian community, now abandoned.

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

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

The often-overlooked ruins of one of the first buildings designed by famous landscape architect Frederick Olmsted.

Final resting place of the author who wrote the ghost story "The Turn of the Screw," and his brother, the Harvard doctor and paranormal investigator.

This is the house that spite built.

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

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

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

The Boston square dedicated to the dark poet who was born nearby.

The site where Charles Dickens gave his first public reading of "A Christmas Carol" in the US.

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

A massive natural rock arch gives the Tuscan mountain its own window to the sky.