A plaque marking the famous abolitionist's birthplace often overlooked by visitors to the nearby Charles Sumner House.

A tiny plaque marks the location of the water source that facilitated the birth of modern-day Boston.

What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."

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

Painstakingly built dioramas sit unnoticed in a Boston office building.

Located in a beautifully restored ice house, this museum is the result of decades of hard work and devotion to the craft of plumbing.

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

This Dutch-styled residential building was originally a cocoa company's World's Fair showpiece.

The remains of a hospital ravaged by fire, once a progressive place of innovations for disabled children.

Haunted boulder in a front yard with a witch painted on it.

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

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

Supposed Massachusetts Grave of a pre-Columbus Knight Templar.

The mansion home of author Edith Wharton.

On top of Gibbet Hill lie the ruins of a lavish turn-of-the-century estate that never quite came to be.

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

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

Founded by the famed children's book artist, this museum spreads an appreciation of the arts through picture books.

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

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

One man’s hobby is another man’s world of metal wonders.

The pleasant woodland cemetery that has inspired more than its fair share of wild legends.

This roadside attraction attracts kids with dinosaurs before blindsiding them with geology.

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