Fog rolls into coastal city of Qingdao(1/4)

Advection fog covers buildings in Qingdao, East China's Shandong province, March 29, 2015. Advection fog occurs when the wind blows moist air over a cool surface. It is common in the coastal city, also a popular tourist destination, from April to June. Qingdao was also selected as one of the 10 most attractive Chinese mainland cities for foreigners to reside in, according to a survey by the State Administration of Foreign Experts Affairs in 2013. (Photo: China News Service/Yu Fangping)