One of the world's coolest maps is the Mapparium at the Mary Baker Eddy Library at the Christian Science Plaza in Boston, MA. The mapparium, designed by Chester Lindsay Churchill, is a three story tall glass globe made up of stained glass. When you visit the globe you tour it by walking through its center. This map was built in 1935 in the Library and reflects the world as it was at that time. The library is a public museum and library at the church and features many exhibits. The globe now features a computer-controlled light show highlighting regions and is designed to be viewed from the inside. Because of its hard glass surface it forms a whispering gallery that lets one hear someone from the far side. Since 1935 more than 10 million people have visited this amazing structure.
The mapparium can be viewed everyday but Monday from 10 a.m. to 4 p.m. To learn more visit the Mary Baker Eddy Library website.