Children balance eggs in Zhuji, Zhejiang province, March 20, 2012, to mark start of spring, or Chunfen in Chinese. The Chinese tradition of balancing eggs on the day of the vernal equinox is said to be 4,000 years old. [Photo/Asianewsphoto]

Children balance eggs in Zhuji, Zhejiang province, March 20, 2012, to mark start of spring, or Chunfen in Chinese. [Photo/Asianewsphoto]