Mapparium: a frozen 1935 political globe inside the Mary Baker Eddy Library

The Mapparium is a three-story stained-glass globe installed in 1935 inside the Mary Baker Eddy Library; it displays the world's political boundaries as they existed in 1935, providing a static snapshot of historical geopolitics. Because the globe preserves borders and country names from that year, it presents a geographic arrangement that differs from modern political maps. The Mapparium is a fixed, visitable exhibit that highlights how political geography can be anomalously preserved in a single location.