The Mapparium is a three-story, stained-glass globe designed in 1935 when the The Christian Science Monitor Publishing House was built. The Mapparium has been renovated but never updated, so the map exists as it did in 1935 (names of countries, numbers of countries, etc. are not accurate as of today). For a small fee, you can have a guided tour of the Mapparium, which includes some information about the Mapparium, The Christian Science Monitor, and Mary Baker Eddy, as well as a light show inside the Mapparium. It's quick, but interesting. (No pictures inside.)

It took me 20 minutes by subway to get to the library from downtown.
The admission to the Mapparium is affordable, and my experience there is awesome!!! The sound and how it was echoed inside the room was interesting. The map is fantastic!! It is the map of the world in the 1900s and the sizes of different places and countries are made to be proportional relative to one another. One thing to keep in mind is that photos and video recordings are prohibited inside the room of the map because of copyright reasons.
From the perspective of a person who has a special interest in history and geography, I highly recommend this place!!!
You can also stop by the Christian Science Church nearby, which has one of the largest organs in the world.

The Mapparium is my favorite place to take friends and out-of-town visitors. Your trip takes you back in time to the center of a stained glass globe as it looked before WWII. Voices speak to you from unfamiliar countries and you notice that nation boundaries and names have changed. You are surprised by how much of the earth is covered by water. You begin to wonder about the different cultures and languages around the world. A step back in time will bring you to an emotional realization about your responsibility for the future of the earth.