Hangzhou, formerly known as Lin'an or Qiantang, is a prefecture-level city, provincial capital, sub-provincial city and mega-city under the jurisdiction of Zhejiang Province. It is approved by State Council as the economic, cultural, scientific and educational center of Zhejiang Province, and one of the central cities along the Yangtze River Delta. Known as the "paradise on earth", Hangzhou is listed as one of the first national historical and cultural cities with many cultural monuments. As economy develops, a large number of excellent contemporary architecture has sprung up in recent years.