Yoga enthusiasts practise yoga on the morning of the summer solstice at Times Square in New York, the United States, June 21, 2010. Thousands of yoga enthusiasts got together during the eighth annual "Solstice in Times Square" event to celebrate the longest day of the year. (Xinhua/Liu Xin)

Yoga enthusiasts practise yoga on the morning of the summer solstice in Times Square in New York, the United State, June 21, 2010. (Xinhua/Liu Xin)