NEW YORK – The China pavilion is a red, inverted pyramid in Shanghai built for the city’s bustling 2010 World Expo. While the pavilion pays some homage to China’s ancient past, it mostly shows off China’s 21st century ambitions, with as much swagger as the 2008 Beijing Olympics. Once the visitor makes her way through the pavilion’s coiling lines, she is swept – by a series of escalators, and by the crowds pushing forward from behind – into visions of China’s future.