A woman takes a photo inside a theme park that was built to memorialize the fatal earthquake that flattened Tangshan, in the city of North China's Hebei province, on the quake's 35th anniversary, July 28, 2011. [Photo/Xinhua]

A man takes a photo of a clock that shows the time when the fatal earthquake that flattened Tangshan happened at a theme park constructed to memorialize the quake in the city of North China's Hebei province, on the quake's 35th anniversary, July 28, 2011. [Photo/Xinhua]