Lafarge is a partner of the France Pavilion at the Shanghai 2010 World Expo. The Expo is focusing on themes of urbanization, architecture and sustainable construction. The "Seven Wonders of Concrete" presentation illustrates the most spectacular technological initiatives in terms of building materials through symbolic structures. From June 7th, come and vote on our Facebook page for your favorite structure. The structure which wins the most likes will be named Top Wonder of Concrete!