The city-state of Monaco on the Mediterranean3 coast is having problems finding space for millionaires. Monaco is less than 2 square kilometers in size. It is called the playground of the rich. It is home to Formula 1 Grand Prix4. Over 30 per cent of its 38，000 residents are millionaires.

House prices are already the highest in the world. The average price is around $100，000 per square meter. City planners say about 2，700 more millionaires are hoping to move there in the next 10 years.

Monacos Prince Albert II has decided to build more homes. He has OKd a $2.1 billion project to fill in a large area of the sea with concrete. The area will have a big harbor5 for yachts6， a park and Japanese garden， and 120 luxury7 waterfront homes. There is a big demand for the new homes. People want the luxury lifestyle and no income tax.

Experts are worried the construction will damage sea life and the environment. However， the Prince said he cares about the environment. He said important sea life would be moved to a newly-built reef8.

地中海岸的城邦國摩纳哥正在为百万富翁的栖居地发愁。摩纳哥面积不足两平方千米，被称为“富人的游乐场”。摩纳哥是“世界一级方程式锦标赛”的发源地。38000个摩纳哥居民中，超过30%是百万富翁。

摩纳哥房价已居全球之首，均价大约每平方米10万美元。城市规划师称，在未来的十年内，大约有2700多名百万富翁想移居摩纳哥。

摩纳哥亲王阿尔伯特二世已决定建造更多的房子。他批准了一项21亿美元的工程——用混凝土填满一大块海区。该区域将拥有一个游艇港口、一个公园和一个日式花园，还有120套豪华水景房。新房子的需求很大，人们想要无需交纳所得税的奢华生活。

专家们担心工程建设会毁坏海洋生物和环境。但这位亲王称，他关心环境。他说，重要的海洋生物将会被搬到新建的堡礁。

Notes：

1. Monaco n. 摩纳哥（欧洲西南部国家）

2. millionaire n. 百万富翁；大富豪

3. Mediterranean n. 地中海adj. 地中海的

4. Formula 1 Grand Prix 一级方程式大奖赛（赛车）

5. harbor n. 海港

6. yacht n. 游艇，快艇

7. luxury adj. 奢侈的

8. reef n. 暗礁