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

The Boston home of a conductor on the Underground Railroad.

Each August, one of the largest religious (and food) celebrations in the country is held in Boston.

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

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

Stolen goods adorn the organ at Old North Church.

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

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

Millions of numbers carved in glass represent the tattoos forced upon victims.

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

A former waterfront market is now in the center of town due to some interesting Boston engineering.

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

Dedicated to one of the darkest moments in Irish history, this memorial has faced its fair share of backlash.

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

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

This headstone marks the grave of an 11-year-old boy killed during clashes in the streets over the boycotting of British goods.

Ice cream stand, snack bar, and time capsule of milk conveyance.

One of the few remaining monuments dedicated to South Boston's Irish heritage.

The world's largest piece of copyrighted artwork.

Solar powered Spectacle Island features all-green facilities.

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

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

Palatial mansion estate used in films including "Flowers in the Attic" and "The Witches of Eastwick."

A historic custom house with ties to George Washington is now a shrine to local nautical history.