The Mapparium - walk-through stained-glass globe

The Mapparium is a three-story stained-glass globe completed in 1935 inside the Mary Baker Eddy Library that visitors can walk through on an internal catwalk. The glass map reflects the political boundaries and geography of the period when it was made, offering a time-capsule view of the world. Its size and walk-through design make it a unique stained-glass installation open to the public in Boston.