Sean Penn and his wife Robin Wright Penn are unloading their five-bedroom, Spanish-style estate in Ross, Calif., in Marin County. Price tag: $15 million. Running on 2.2 acres, the 10,000-square-foot pad — which they bought in 1996 and spent more than two years remodeling — features a gym, home office, au pair suite and three-car garage, according to the Associated Press. Also on the property: A two-bedroom guest cottage, complete with a two-car garage, pool, tennis court and redwood ...