This historic sculpture from the 16th century is even older than the city of Boston.

This mosaic commemorates the oldest subway tunnel and station in the United States.

A pair of antique trolleys are on display at one of the oldest subway stations in the United States.

This faux Greek Revival mansion is a clever optical illusion tucked into a Beacon Hill alley.

A dedication plaque on this Boston tunnel is a microcosm of a massive, controversy-laden construction project.

The Teenage Mutant Ninja Turtles stop thieves at the site of a historic 1876 bank robbery.

A rock and sand industrial site returns to its natural habitat.

This historic house was the birthplace and childhood home of the 35th president of the United States.

Dedicated to nine marines from Massachusetts who perished during the Beirut bombings.

Cape Cod’s historic beacon made famous on a potato chip bag.

The oldest brick saltbox house in America.

A rich collection honors the iconic American artist, down to the jacket worn in his “Freedom of Speech” painting.

Each solstice, students and astronomy enthusiasts gather at a primitive but functioning sun wheel to witness how humanity first used this calendar.

This 15-foot-tall sculpture stands vigil at the back entrance to the largest public park in western Massachusetts.

The largest living museum in the Northeast recreates life from the Early Republic period complete with costumed historians and reenactors.

Commemorating the 1948 creation of the Jimmy Fund, a Boston-based cancer charity.

Dedicated to the neverending mathematical constant, this plaque next to a park bench was sponsored by an anonymous benefactor.

Dedicated to a colonial woman who was hanged for being a Quaker.

The bench featured in the film with Robin Williams and Matt Damon has become a popular destination for moviegoers.

A Harvard-area eatery preserves the uncovered tiles of its century-old predecessor.

A gift to the children of Boston, this bronze bear represents playfulness, a spirit of love, and the warmth of big hugs.

A beacon atop a downtown building provides Bostonians with weather forecasts and baseball news.

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.

The home of an antique carousel still in operation.