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

One of the last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.

A Manhattan courthouse hides a small but scathing memorial to Holocaust injustice.

Possible relics of the ancient Roman city are hidden in this restaurant's façade.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

This anonymous businessman sculpted in bronze became an enduring memorial after 9/11, and had been mistaken by rescue workers for a survivor in the rubble.

The most loyal of little dogs, or a Victorian era publicity stunt?

A toxic ghost town sitting atop a massive coal fire.

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

The largest guitar store in the world has been visited by some of music's all-time greats passing through upstate New York.

The remains of a failed subway in upstate New York is now an underground graffiti bunker.

What remains of the simple red brick chapel where the women's rights movement began.

Rochester's signature culinary delicacy.

Alexander Milliner, a favorite of General Washington, is interred at Mt. Hope Cemetery along with 80 other Revolutionary War veterans.

Dedicated to the art and science of glass in equal measure, this space is as much laboratory as museum.

One patriotic farmer's ode to the 9/11 tragedy remains even after the farm changed hands.

Curtiss is a forgotten figure in the early history of flight.

The purported world's shortest international bridge connects a homeowner in Canada to his backyard in New York.

A castle built for love, and abandoned due to heartbreak.

This tiny little island has, as the name says, just enough room for its single house.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

A huge musical instrument played by the ocean.