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

This area was once known for being a lawless haven for rough-and-tumble sailors, earning the maritime-themed nickname "the black sea."

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

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

A lighthouse on a diminutive island was one of the first of its kind to guide seamen home.

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

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

One of the indelible moments of the American Revolution took place at this location.

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

This Dutch-styled residential building was originally a cocoa company's World's Fair showpiece.

Statue commemorating the use of ether in anesthesia.

American revolutionaries and British soldiers alike are buried here in the fourth-ever cemetery in Boston.

Hut with supplies for shipwreck survivors.

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

The massive machine creates cracking displays of indoor lightning.

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

Civil War Fort on an island in the Boston Harbor.

Civil War-era Fort designed to withstand invasion and attack, with tricky traps called "murder holes."

The site where Charles Dickens gave his first public reading of "A Christmas Carol" in the US.

This cemetery served as the only official burial grounds in Cambridge for nearly 200 years.

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

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

America's original house of worship for Spiritualism, the religious movement based on communing with the dead.

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