The World's Most Expensive Houses Are Like Modern Day Palaces

3. Lavish Bel Air Mansion - California, USA

This Bel Air mansion was created by world-renowned real estate developer Bruce Makowsky and is considered one of the most uniquely innovative houses in the world. The estate is located in an exclusive area of Bel-Air, settled between the homes of some of the richest people on the planet. The 42,000 square- foot residence has an additional 17,000 square-foot outdoor deck that embraces a glass infinity pool and a cinema size flat screen for anyone who feels like indulging in a movie while swimming.