A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Come for the gun-toting hillbilly madman, stay for the ice-cream loving basketball bears.

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

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

No one messes with the Massachusetts sacred cod, not this time...

A mysterious stone embedded at the base of a historic Boston building.

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

These whimsical works of art tell the story of the city's past and present.

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

A single light illuminates one man's overshadowed contributions to street lamp history.

Mysterious stone tower featured in many alternative histories of the New World.

The home of the artist credited with introducing the tomato to the American diet.

Oldest synagogue in the United States.

The second oldest Jewish graveyard in the U.S. is tiny, with connections to George Washington and Henry Wadsworth Longfellow.

The oldest still-operating tavern in the United States was once owned by a pirate.

The first newspaper printed by an expeditionary force was published in this colonial mansion.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

Mural made of 100,000 pieces of hand blown glass, and one of the largest glass murals in the US.

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

An Irish Memorial commemorating those who perished due to potato blight.

The arboretum whose marshy soil sucked up the dreams of housing developers.

The infamous Boston Mob ran rackets from an office here in the 1970s.

Narrowest house in Boston.