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

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

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

The headquarters of one of the world’s longest-running humor magazines bears a noticeable resemblance to a head wearing a Prussian helmet.

This cemetery served as the only official burial grounds in Cambridge for nearly 200 years.

This tiny, painted door at the base of a tree stump has been a fixture of the Harvard University campus for decades.

This massive World War II calculator hearkens back to the days when "computer" was a job title.

Impossibly life-like natural history models created out of glass by a father and son.

Three prestigious academic collections come together to create a world-class natural history museum.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

One of America's most historic homes also holds a startling literary legacy.

A real plaque marks the spot where a Faulknerian character committed fictional suicide.

An alley way dedicated to graffiti and street art is a constantly changing street gallery.

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

Yale University's home for rare works, including the mysterious Voynich Manuscript.

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

Panoramic views of the city of New Haven and the Long Island Sound, with a side of history.

The world's largest public collection of PEZ memorabilia.

The first pet cemetery in the United States.

This strange, big-tailed beast became a Pennsylvania town's unofficial mascot.

The mysterious canine hides atop a drain pipe on the back of the building, some say as a sneaky shoutout to Yale.

Seven people are buried in the middle of what's now a movie theater parking lot.

A small structure built from used railroad ties honors the short term of America's 20th president.

These unassuming lighthouses have seen the first reading of the Pledge of Allegiance, the first wireless transmission, and more than one mystery.