What do you get when a magician buys an A-frame house in the desert? A sprawling, brightly colored compound that looks like something out of a Dr. Seuss book. It has hidden rooms, fire poles, and a place where visitors must sign in and have their mugshot taken. The Slammer is the creation of Penn Jillette. It sits on 10 acres of land in the Las Vegas desert. The residence started out as an A-frame house and grew as the magician, one half of the act Penn and Teller, added on. It has covered parking, a recording studio, a home...