Hidden behind a Target are pillows of cooled lava that formed at the bottom of a deep lake in the Mesozoic Era.

Final resting place of Typhoid Mary.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

To avoid the demolition costs this abandoned drawbridge was simply left in the up position.

Mass Grave of 48 colonists killed in a raid by Native Americans and the French in 1704.

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

The strikingly modern structure stands out among the brick buildings speckling the Harvard Business School's campus.

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

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

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

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

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

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

A freighter full of exotic animals ends a harrowing voyage impaled on uncharted rocks in the Boston Harbor.

This stimulating sex toy museum is sure to arouse the interest of its visitors.

A Medieval Water Tower in the Heart of Massachusetts.

The largest collection of historic military firearms in the United States.

The largest glacial erratic boulder on Cape Cod.

Once the largest public hospital for the mentally ill was also surrounded by controversy.

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

This funeral home had the honor, if that is the correct word, of hosting the funeral of the famous Sacco and Vanzetti.

Last church of this militaristic WWII style.