Monaco on the Mediterranean has run out of for millionaires. Monaco is than 2 square kilometers in size. It is called the playground of the . It is for its Formula 1 Grand Prix, its casino and a harbor. Over 30 per cent of its 38,000 are millionaires. House prices are the highest in the world. The price is around $100,000 per square . About 2,700 more millionaires will move there in the 10 years.
Monaco's Prince Albert II will build more . There is a $2.1 billion to fill in a large area of the sea with . The area will have a harbor, a park, a Japanese , and 120 luxury homes. Rich people want the new homes, lifestyle and no tax. Experts say the will damage sea . The Prince said he cares about the . He said sea life will be moved to a reef.