Be sure to check out the renowned Mapparium! This stained glass globe at the Mary Baker Eddy Library will fascinate anyone with an interest in geography, in addition to just being generally cool. Read more
Go to the Mary Baker Eddy Library and take the 20 minute tour of the Mapparium. Stand in the middle and talk to yourself in full surround sound, try the "whisper effect" too.
Go next door to the "mother church" and get a free tour. Learn about Christian Science, Mary Baker Eddy, and architecture. The original church has incredible stained glass.