Tourists gather in front of old and new Casino Lisboa during a Chinese New Year celebration in Macau, a special administrative region of China, on Feb. 1. For decades, the Lisboa was the only game in town. Now, the world's biggest gambling companies are scrambling to set up shot in what was once a sleepy Portuguese colony. Vincent Yu/AP hide caption

itoggle caption Vincent Yu/AP

A woman gathers shells along the ocean near the Revel Casino Hotel in Atlantic City, N.J., early Tuesday. The casino resort has closed, a little over two years after opening with the promise of helping to renew Atlantic City. Mel Evans/AP hide caption

itoggle caption Mel Evans/AP

Large casinos in Nevada are continuing their losing streak, reporting more than a billion dollars in losses for the most recent fiscal year. Here, a view of Paris Las Vegas, a hotel and casino located on the Las Vegas Strip. John Gurzinski/AFP/Getty Images hide caption

itoggle caption John Gurzinski/AFP/Getty Images