World's third richest person Elon Musk's last remaining home, a 47-acre Bay Area estate, located in Hillsborough, California, has been put up for sale for $37.5 million (over ₹277 crore). The estate has a century-old 16,000-square-foot mansion, pool, hiking trails and space for 11 cars, a listing said. Musk had announced his decision to sell the house earlier this week.