From economic backbone of a community to deadly diving hole, these former stone quarries are now a park for rock climbers and graffiti artists.

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

Last church of this militaristic WWII style.

A lighthouse on a diminutive island was one of the first of its kind to guide seamen home.

Grave of the man allegedly responsible for a series of infamous murders in Boston in the 1960s.

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

Civil War Fort on an island in the Boston Harbor.

Located in a beautifully restored ice house, this museum is the result of decades of hard work and devotion to the craft of plumbing.

Eliot was the first missionary to produce religious text for Algonquians in their own language.

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

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

Beautiful steampunk ghosts of early Massachusetts.

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

The world's largest piece of copyrighted artwork.

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.

This beautiful architectural gem was the first waste treatment facility in Boston.

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

Hill-like structures formed by glaciers and sandy spits of land.

Solar powered Spectacle Island features all-green facilities.

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

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

The final resting place of a suffragist author.