A 3D light show is displayed on the City Square under the Oriental Pearl TV Tower in Shanghai, East China, Nov 15, 2013. The 10-day show starting from Friday was held to celebrate the 170th anniversary of the opening of Shanghai's port. [Photo/Xinhua]

A man takes photos of a 3D light show displayed on the City Square under the Oriental Pearl TV Tower in Shanghai, East China, Nov 15, 2013. The 10-day show starting from Friday was held to celebrate the 170th anniversary of the opening of Shanghai's port. [Photo/Xinhua]

A 3D light show is displayed on the City Square under the Oriental Pearl TV Tower in Shanghai, East China, Nov 15, 2013. The 10-day show starting from Friday was held to celebrate the 170th anniversary of the opening of Shanghai's port. [Photo/Xinhua]

People watch a 3D light show displayed on the City Square under the Oriental Pearl TV Tower in Shanghai, East China, Nov 15, 2013. The 10-day show starting from Friday was held to celebrate the 170th anniversary of the opening of Shanghai's port. [Photo/Xinhua]