Feb 1 (Reuters) - Facts and figures about the city of New Orleans and the Superdome, site of Sunday's Super Bowl game between the Baltimore Ravens and San Francisco 49ers: NEW ORLEANS 51st largest U.S. city with a population of 360,740 Founded in 1718, the city was named for Philip II, Duke of Orleans Nicknamed "The Big Easy," New Orleans is most famous for its French Quarter, jazz music and ...