The site of the tragic isolation of Nipmuc Native Americans left to perish in King Philip's War.

A memorial dedicated to victims of the Irish Potato Famine who perished while quarantined on this island.

A daybeacon pyramid is about all that's left of this island that is said to have sunk due to a pirate's curse.

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

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

This is the house that spite built.

The thousands of shades on display — some toxic, others impossibly rare — are a library of more than just color.

This tiny, painted door at the base of a tree stump has been a fixture of the Harvard University campus for decades.

A little Lego easter egg is hidden underwater in the Boston Tea Party tableau at Miniland.

Sacks of potatoes, made of cast stone, mark where the iconic potato sheds once stood along the river.

Narrowest house in Boston.

Tragedy on Little Brewster Island memorialized.

The tomb of Increase Mather and his son Cotton, influential colonial ministers obsessed with the occult.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

This funeral home had the honor, if that is the correct word, of hosting the funeral of the famous Sacco and Vanzetti.

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

This "life-size" depiction of Mickey Mouse as a half-lobster is both whimsical and a bit creepy, standing guard over the Boston waterfront.

No one messes with the Massachusetts sacred cod, not this time...

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

A more than 260-year-old crypt built on Boston's oldest English burial ground.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

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

The former locus of Boston's high culture has been shuttered and buried for over 70 years.

A memorial to Chinese freedom in the city where American freedom was born.