Bill Gates Ranch, Wyoming

Bill Gates, the co-founder of Microsoft, who remains one of the richest people in the world, bought this historic ranch in 2009 (for $9 million). Known as the Irma Lake Lodge, the property was settled by Buffalo Bill himself, in 1902. It now has a 15,000-square-foot ranch house and many other buildings on its 492 acres, including Buffalo Bill’s modest three room cabin. The property is at the end of private road, seven miles long, 20 miles from Cody. Gates owns several homes, including a horse ranch in Rancho Santa Fe, California (bought in 2014 from Jenny Craig, for $18 million), and a house on Lake Washington, near Seattle.