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

The massive machine creates cracking displays of indoor lightning.

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

This bronze sculpture was inspired by a photograph of Martin Luther King Jr. and his wife embracing after he won the Nobel Peace Prize.

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

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

No one really knows how these old hobby horses got here, but the herd keeps growing.

These beautiful garden buildings are among the oldest surviving greenhouses in the United States.