The Gamble House
The Gamble House is located in Pasadena, California. It was built in 1908 for David and Mary Gamble ("Procter & Gamble") and is now a National Historic Landmark. The famous house also appeared in the movie "Back to the future" - as home of Dr. Emmett Brown. Nowadays its a museum operated by the University of Southern California. A tipp: Switch to Google Earth mode to see the house in 3D.