#1 2008-2009              Bill Gates ' house is a large earth-sheltered mansion    in the side of a hill overlooking Lake Washington in Medina , Washington .    http://labnol.blogspot.com/2005/05/inside-bill-gates-home.html    http://www.youtube.com/watch?v=3RTu8f9CrvI    http://www.usnews.com/usnews/tech/billgate/gates.htm    http://en.wikipedia.org/wiki/Bill_Gates'_house   Michael Dell's Home:         Michael Dell House in Texas