Mapparium shows a 1935 world map, not a current globe

The Mapparium is a three-story glass globe inside the Mary Baker Eddy Library that visitors walk through at this address. It displays political boundaries and country names as they existed in 1935 when the installation was created, which leads some visitors to mistakenly assume it reflects modern borders. The exhibit is also noted for its unique acoustics and for being a historic artifact representing 20th-century cartography.