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

The 1920s child prodigy author was last seen here at her Brookline home before vanishing at age 25.

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

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.

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

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 upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

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

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

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

Ice cream stand, snack bar, and time capsule of milk conveyance.

What may be Boston's finest Art Deco building, located in the city's Financial District.

These whimsical works of art tell the story of the city's past and present.

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

Dim sum, served in a grand old theater.

This historic Boston building has gone from personal estate to porn theater and back again.

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

A unique music museum housed in a historic Boston theater.

A plaque memorializes the Boston location of one of the largest nightclub fires in history.

Statue commemorating the use of ether in anesthesia.

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

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

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