A man takes flowers to a memorial park to pay his respects to his brother, who died in the fatal earthquake that flattened the city of Tangshan, in North China's Hebei province on July 28, 2011, the 35th anniversary of the quake. [Photo/Xinhua]

A piece of paper is placed at a memorial park by a mother in honor of her son who died in the fatal earthquake 35 years ago that flattened the city of Tangshan, in North China's Hebei province, July 23, 2011. [Photo/Xinhua]