Memorial to a beloved puppeteer as well as all street performers.

This supermarket is suspended 25 feet above an interstate highway.

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

This tower commemorates the spot where George Washington hoisted the Grand Union flag.

The nation's second-ever First Lady urged the founding fathers to "remember the ladies."

One of the last remaining movie theatres in the country that features a rear-projection system.

The world's largest piece of copyrighted artwork.

The oldest tavern in Lowell has dedicated fans of its fan.

A comic book store got the road by its shop officially renamed after Superman's girlfriend.

This statue intended for children to enjoy became a minor political spat.

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

One of the largest public collection of historic armored and military vehicles in North America.

A tiny plaque marks the location of the water source that facilitated the birth of modern-day Boston.

The ruins of one of the first railroads in the U.S. lie hidden within a neighborhood cul-de-sac.

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

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

Dedicated to one of the darkest moments in Irish history.

Once the largest public hospital for the mentally ill was also surrounded by controversy.

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

Rising 30 feet in the air atop Quarry Hill, the Old Powder House is the oldest stone building in the state of Massachusetts.

One woman’s obsession gave birth to this lovely oddity at the Boston Public Library.

This popular Boston haunt is reminiscent of a time gone by, when slow cafes and sweet-smelling smoke wafting from patios was the norm.

Since 1947, this living history museum has been providing an immersive look at life in Plymouth Colony.

One of two lighted lanterns hung in the church belfry on the eve of the Revolutionary War to warn that the British were on their way.