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

Burial ground for revolutionary veterans attracts tall tales, ghost hunters, not enough historians and preservationists.

Last church of this militaristic WWII style.

A beautiful Victorian-era cemetery, complete with a miniature village.

This classic red schoolhouse is said to have been where Mary and her little lamb went to school.

This dam in the woods, built by Henry Ford with only manpower and oxen, holds no water and serves no purpose.

Civil War Fort on an island in the Boston Harbor.

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

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

Hut with supplies for shipwreck survivors.

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

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

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

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

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

19th-century operating theatre in which the use of ether was first demonstrated - plus, a skeleton and a mummy!

This ambitious father and son team reigned supreme over the North End, and witches, for many years.

The site of Paul Revere's historic two lantern warning.

This landmark cemetery in Boston was created more than 300 years ago.

The tomb of Increase Mather and his son Cotton, influential colonial ministers obsessed with the occult.

This parking garage was the site of what was - at the time - the largest cash robbery in history.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

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