Over-the-top tech billionaire vacation homes

When Microsoft billionaire Paul Allen isn’t cruising the high seas on one of his superyachts, he can relax at one of his many luxurious retreats. In addition to an island in Washington and a beachfront Hawaiian estate, Allen owns a hilltop mansion on the Côte d’Azur called the Villa Maryland. He employs a staff of 12 and counts Bono and Andrew Lloyd Webber as neighbors.