Bill Gates: ~ $147.5 million, Medina
Bill Gates may no longer be the richest man in the world, having vacated that spot for Amazon’s Jeff Bezos, but his current net worth can still very much cover the $147.5 million price tag of his fabulous property in Medina, Washington. Standing at 66,000 square feet, the mansion has amazing amenities, including a private library, where the former Microsoft head can enjoy his retirement in peace.

