Hangzhou

Grade 1 air quality:76 days a year

Median home price:16,922 yuan/per square meter

Hangzhou is the capital city of southeast China's Zhejiang province. Dubbed the "Paradise under the Heaven" for its gorgeous natural scenery and pleasant climate, the city is provides its residents with increasing modern living facilities as well explores new ways to care for its elderly. Hangzhou residents have a life expectancy of 80.67 years, a level even higher than that in many developed countries.