Rising 30 feet in the air atop Quarry Hill, the Old Powder House is the oldest stone building in the state of Massachusetts.

Bouncing, delightful, mechanical art at the MIT Museum.

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

Narrowest house in Boston.

A New England ghost town features a trail of boulders etched with intriguing life lessons.

Museum dedicated to awful artwork.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

Millions of numbers carved in glass represent the tattoos forced upon victims.

Sacks of potatoes, made of cast stone, mark where the iconic potato sheds once stood along the river.

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

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

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

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.

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

The site of Paul Revere's historic two lantern warning.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

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

Two thousand artifacts from around the world collected by one woman who loved to travel.

An enormous, inside-out glass globe built in 1935.