Pedestrians walk on the piano-style stairs at the Wulin Plaza in Hangzhou, capital of East China's Zhejiang province, Oct 9, 2012. The stairs are able to make relevant sounds when people foot on the "key" of its steps. [Photo/Xinhua]

Competitors share a moment before the start of theTour of Beijing race onTian'anmen Square Oct 9, 2012. The race, which was held for the first time last year, will cover a distance of 761.5 kilometers. [Photo/CFP]