Debris remains on the site of the United Nations and Meteoworld pavilions in Zone B of the 2010 Shanghai World Expo Park on Oct 19, 2011 (top). Visitors pass the Meteoworld Pavilion in May, 2010 (bottom). All foreign pavilions in Zone B of the expo site have been demolished, paving the way for construction of headquarters for centrally-administrated stated-owned enterprises, a project planned as part of the park's post-Expo development program.[Photo/CFP]