The often-overlooked ruins of one of the first buildings designed by famous landscape architect Frederick Olmsted.

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

Designed to honor all those that work as nurses around the globe.

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

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

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

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

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

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.

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

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

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

The Boston square dedicated to the dark poet who was born nearby.

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

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

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

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

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

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

A beautiful Victorian-era cemetery, complete with a miniature village.

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

After funding was cut for a memorial to the Danish author, the sculptor had his statue ceremonially lowered into the city harbor.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.