A plaque marking the famous abolitionist's birthplace often overlooked by visitors to the nearby Charles Sumner House.

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

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

A men’s restroom became a sandwich shop.

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

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

The history of the tea trade is told in bas-relief on this historic pair of Boston doors.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

Statue commemorating the use of ether in anesthesia.

Painstakingly built dioramas sit unnoticed in a Boston office building.

America's original house of worship for Spiritualism, the religious movement based on communing with the dead.

An enormous, inside-out glass globe built in 1935.

Two thousand artifacts from around the world collected by one woman who loved to travel.

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

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

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

Beautiful steampunk ghosts of early Massachusetts.

The oldest playground in America.

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.

An anonymous art project beneath Longfellow Bridge where hundreds of trophies line the steel support beams.

Her final resting place was intended to be modest and private, but the power of her popularity continues to draw visitors.

A bomb shelter and some fireplaces are all that remain of the house Fred Roberts tried so hard to keep standing.

The stone walls of a home built to withstand a California wildfire still stand after more than a century.