So, why do we have 22 brains hanging around Btown? The answer is in http://www.jbtbrains.org/
And, if for whatever reason you decide to take a picture (or two too). This is a map with the locations (http://www.jbtbrains.org/wp-content/uploads/2012/04/BEDownloadableMap.pdf) –Beware that some are inside buildings
Pinky: Gee, Brain, what do you want to do tonight?
Brain: The same thing we do every night, Pinky – try to take over the world!