New Orleans We're not going to lie, this one's all about sports. New Orleans already played host to the Allstate ( ALL) Sugar Bowl and BCS Championship Game in 2012 and brought in more than 250,000 visitors and $500 million in economic impact as a result. Then it hosted last year's men's college basketball's Final Four and national championship game in March and early April and took in another $100 million in business for its trouble. This year, however, the Superdome hosts its first Super Bowl since Hurricane Katrina hit the city in 2005. Mercedes-Benz has taken over as the stadium's sponsor and gave it a major overhaul in 2011. The event is the last in New Orleans' string of big-ticket sporting events, but should be easily the biggest of the bunch. Mayor Mitch Landrieu is hoping the NFL's big game will help the city reach $1 billion in total revenue for all its big-game hosting duties. It doesn't undo the lingering damage left in the storm's wake, but it certainly doesn't hurt.