Completely out of the realm of audio -- but interesting nonetheless -- the analog processor museum -- mostly for aiming the 16 inch guns on the Missouri:
http://gigaom.com/2009/02/27/a-tour-of-processors-from-wwii-through-the-70s/
http://gigaom.com/2009/02/27/a-tour-of-processors-from-wwii-through-the-70s/