The Atlanta, U.S., firm of Portman will build a new Hilton Waldorf Astoria hotel at No. 2 Bund in Shanghai, an address that had an ornate ballroom and social club for European tycoons during the colonial period called the Shanghai Club. Built in 1910 this address saw Europeans, the Japanese in 1941, the Mao period and Red Guards, and now a return of Western tourists. All this is happening as the World's Expo is opening in Shanghai in April 2010.