WHAT does the house of William Henry ‘Bill’ Gates III, the second-richest person in the world, look like? His house, measuring 6,130 meters lengthways, stands on 2.1 hectares of land on top of a hill facing the Washington Lake in Seattle, the United States.

Inside the extraordinarily large house there are 24 bathrooms, seven bedrooms, three kitchens, a theater with 20 seats, a ballroom that can accommodate 200 guests, a gym, and a library th