Mapparium
An enormous inside-out glass globe built in 1935
Category Unusual Monuments, Small Worlds and Model Towns, Inspired Inventions, Instruments of Science, Marvelous Maps and Measures, Architectural Oddities, Eccentric Homes, Outsider Architecture
In 1930, Boston architect Chester Lindsay Churchill was commissioned to design the new Christian Science Publishing Society headquarters to compete with the other grand newspaper headquarters of the day. The New York Daily News building had its famous gigantic spinning globe. Naturally the Christian Science Monitor had to do one better.
Enter the Mapparium, a three-story-tall inside-out stained-glass globe that is bisected in the middle by a glass walkway. Once illuminated with hundreds of lamps, today it glows with the light of LEDs.
Curiously, the Mapparium is the only place in the world in which the surface of the earth can be seen without distortion. Even when looking at an accurate globe, the relative sizes of the continents are distorted by perspective, as the spherical shape causes different regions to appear at different distances from the eye. But with a view from the very center of a globe, looking out, the eye is the same distance from every point on the map.
It is fascinating to view the earth this way for the first time. Africa is huge. North America, Europe and Asia are all jammed up against the North Pole. You have to look nearly straight up to see them. Sizes and locations of continents and countries you’ve always taken for granted are suddenly unfamiliar.
While the relative size and position of the continents are correct, the map's political boundaries are long out of date. The Mapparium hasn’t changed since 1935. It's still possible to find Siam and French Indochina, but not Israel or Indonesia. The USSR looms large. Africa remains a large block of European colonies.
The most curious part of all about the Mapparium is that when visitors stand at the center the perfect sphere, it becomes an excellent whispering gallery. One can hear one's voice in full 360-degree surround sound. It is highly disconcerting.
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- Hours Hours of Operation: Tuesday-Sunday 10:00 am - 4:00pm. Closed Mondays.
- Website http://www.marybakereddylibrary.org
- Address 200 Massachusetts Avenue, Boston, Massachusetts, United States
- Cost General Admission: $6.00
Located in the Mary Baker Eddy Library for the Betterment of Humanity.


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