My girlfriend Maia, also an audio nerd, gave me one of the best birthday presents ever - a tour of the "World's Quietest Room"! The Guinness Book of World Records bestowed this title on the anechoic chamber at Orfield Labs in Minneapolis, Minnesota. As we found out in our tour, no one makes a microphone sensitive enough to accurately measure the decibel level of the room, since there's virtually no sound at all.
