Before I got on the right track on level 57, I was just googling random searches about phone booths to see what I might find. This isn't really funny, but it's interesting if anyone wants to check it out. I never heard about this, but I guess it has some sort of cult following. There was even a movie made based on it.
http://en.wikipedia.org/wiki/Mojave_phone_booth
Here are a couple other links here with additional information and pics:
http://www.illuminatrix.com/mojave/
http://www.mojavephonebooth.net/HOME.html