People pay a tribute in front of the statue of Dr. Sun Yat-sen at Dr. Sun Yat-sen's Mausoleum in Nanjing, capital of east China's Jiangsu Province, March 12, 2013. People gathered here on Tuesday to commemorate the 88th anniversary of the passing away of Dr. Sun Yat-sen, a revered revolutionary leader who played a pivotal role in overthrowing imperial rule in China. [Xinhua]