This railroad tunnel was once the longest in Massachusetts.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

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

The massive machine creates cracking displays of indoor lightning.

This impressive Boston holy house is the American mecca for Christian scientists.

On top of Gibbet Hill lie the ruins of a lavish turn-of-the-century estate that never quite came to be.

This peaceful Massachusetts graveyard was one of the first "garden-style" cemeteries in America.

This supermarket is suspended 25 feet above an interstate highway.

Louisa May Alcott based “Little Women” on her experiences growing up in this house with her sisters.

"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."

This dam in the woods, built by Henry Ford with only manpower and oxen, holds no water and serves no purpose.

This classic red schoolhouse is said to have been where Mary and her little lamb went to school.

One of the largest public collection of historic armored and military vehicles in North America.