The famous Black Tiger Spring is named for the roaring sound the water makes as it splashes into the city moat from the carved tiger heads. [Photo/ijntv.cn]

The landscape integrates regional springs water and the urban water system, which highlights the ancient city's wisdom in promoting sustainable development and in water environment treatment and utilization.

It also represents a unique system in China, even in the world, in terms of utilizing spring water resources.

Another five sites included in the tentative list this round are China-Mongolia-Russia Tea Road, the Haining tidal landscape in Zhejiang province, as well as the Shimao Relic Site, the Tang Emperor Mausoleum and the Western Han Emperor Mausoleum in Shaanxi province.