This cave was once thought to be a hiding place for the devil.

A plaque memorializes the Boston location of one of the largest nightclub fires in history.

An easy-to-miss garden in Boston's North End honors the mother of JFK and others who lost children in WWII.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

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

A beacon atop a downtown building provides Bostonians with weather forecasts and baseball news.

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

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

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

This nearly 200-year-old restaurant's history includes an exiled French prince, JFK, and a very hungry Daniel Webster.

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

What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."

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

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

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

Each August, one of the largest religious (and food) celebrations in the country is held in Boston.

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

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.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

In 1958, an MIT fraternity pledge laid down on this bridge and instituted a new, unique unit of measurement.

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

This nearly endless university hallway is home to a unique sunset known as "MIThenge."

Bouncing, delightful, mechanical art at the MIT Museum.