A riddle to light up the festival

Visitors to the Guilin Park in Shanghai try to figure out a lantern riddle, a traditional holiday entertainment that dates back more than 2,000 years. Yesterday was the Mid-Autumn Festival, a day for family reunions and one of the three most important Chinese festivals on the lunar calendar, along with the Spring Festival and Lantern Festival. Many people chose to celebrate at home this year with the number of people going out of town for the three-day break down more than 20 percent compared to 2010.