Solar powered Spectacle Island features all-green facilities.

This small shop walked so America could run on Dunkin'.

The homestead of American patriot John Adams.

From economic backbone of a community to deadly diving hole, these former stone quarries are now a park for rock climbers and graffiti artists.

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

One of the now-less-hidden floral gems of the "Emerald Necklace."

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

This hotel was the site of major events in sports and radio history. It was also used as a detention center during World War II.

The last remaining 19th-century tenement from Boston's old West End neighborhood.

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

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

The world's largest piece of copyrighted artwork.

This parking garage was the site of what was - at the time - the largest cash robbery in history.

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

One of the few remaining monuments dedicated to South Boston's Irish heritage.

Dedicated to one of the darkest moments in Irish history.

The infamous Boston Mob ran rackets from an office here in the 1970s.

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

The former site of an all-but-forgotten colonial landmark is now remembered by an often overlooked bas relief.

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

Tragedy on Little Brewster Island memorialized.

This historic patch of real estate offers a glimpse of colonial Boston.

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

Historic Hull Street was actually the first street with a proper name in the Boston area.