The Machine Room
It's like dexters laboratory in there !
Not much to see in here unless you are an out and out geek...
However the machine room is probably the most important room in the main studio, the machine room houses the main ProTools HD rig and also the amplification and digital crossover for the main monitors.
The advantage of having a machine room is that the noise making elements of the studio (the mac, the amps etc etc) are kept out of the control room so that no unwanted noise clouds engineering or mix duties.