One of the world's oldest and most massive living organisms is a grove of quaking aspens.

A bronze sculpture honors the 12 black students who attended the first integrated public high school in the segregated South.

The final resting place of a suffragist author.

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

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.

Malcolm X's house during his most formative years faces an uncertain future.

America’s oldest community theater, this Boston club has been in operation since 1877.

The oldest playground in America.

This Dutch-styled residential building was originally a cocoa company's World's Fair showpiece.

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

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

This plaque commemorates the call between Alexander Graham Bell and Thomas A. Watson.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

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

One of America's most historic homes also holds a startling literary legacy.

This cemetery served as the only official burial grounds in Cambridge for nearly 200 years.

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

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

This Massachusetts home was the first to have a telephone line and its own phone number: 1.

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

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

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

19th-century operating theatre in which the use of ether was first demonstrated - plus, a skeleton and a mummy!

Around 160 years ago, this spot marked the location of a wharf along the shores of the Charles River.