GIGANTIC THERMOMETER: A thermometer-shaped tower stands at the Shanghai World Expo site on the bank of the Huangpu River on April 2. The 165-meter tall tower is a power plant chimney that has been converted into a meteorological forecasting and early warning platform (XINHUA)

SPRING FLOWERS: Gardeners arrange flowers in the flower terrace at the Shanghai World Expo site on April 3 (ZHENG XIANZHANG)

AT THE DOCK: The yacht dock at the Shanghai World Expo site on April 3 (ZHENG XIANZHANG)

RACING AGAINST TIME: Construction of the India Pavilion is almost complete (JIANG XIAOYING)

A PREVIEW: A tourist looks at a map of the World Expo site on an overpass (JIANG XIAOYING)