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

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

Ironically this massive termite is the mascot for a company that is acclaimed for killing his kind.

The US Navy's only submarine museum is also home to the world's first nuclear submarine.

This 3,500 pound obelisk was constructed with more than 1,000 reclaimed guns.

A centuries-old church stands as a testament to Boston's "father of architecture."

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

This beautiful architectural gem was the first waste treatment facility in Boston.

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

Ice cream stand, snack bar, and time capsule of milk conveyance.

This landmark cemetery in Boston was created more than 300 years ago.

Narrowest house in Boston.

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

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

A graveyard that dates back over 200 years stands near a busy shopping center.

Built by the patriotic residents of Boonsboro in a single day.

A National Historic Landmark with a scenic clock tower and park filled with deer and peacocks, plus a military museum.

Inside houses a vast collection of military aircraft and missiles spanning the ages.

This unique building in the main square stands out among the city's typically Baroque architecture.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

Climbing this abandoned railway leads to breathtaking vistas of O‘ahu.

The remains of the man who founded Pennsylvania lie in an unassuming grave in the English countryside.

This elaborate towering structure was once famed for its revolutionary height.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.