The bears may be gone, but their old cages can still be found.

The often-overlooked ruins of one of the first buildings designed by famous landscape architect Frederick Olmsted.

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

Ralph Waldo Emerson spent two years living here decades before it became a Frederick Law Olmsted-designed park.

A beautiful Victorian-era cemetery, complete with a miniature village.

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

From bench to vandalism to art, this silly prank seat was funny enough to become permanent.

Radical Bookstore and Community Space.

The oldest playground in America.

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.

Commemorating the 1948 creation of the Jimmy Fund, a Boston-based cancer charity.

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.

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

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

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

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

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

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

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.

A three-piece musical sculpture installed between the subway tracks at Kendall Station near MIT.

MIT students continue the legacy of beloved professor "Doc" Edgerton through learning by doing.