A mirage takes place off east China coast in Penglai, on the tip of Shandong Province on May 7, 2006, with modern high-rise buildings, broad city streets and bustling cars as well as crowds of people were all clearly visible. Experts explained that a mirage is formed when moisture in the air becomes warmer than the temperature of sea water, which refracts rays of sunlight to create reflections of the landscape in the sky. [China Foto Press] 

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