Apart from all these venues, the Rio, Las Vegas is one place which tops the list of the most important Poker venues of the world. Most International Poker championships have been arranged at the Rio itself, making the convention center at the Rio the Mecca of International Poker.The world Poker Tour and the World series of Poker are two of the mot authentic and famous Poker tournaments in the world. While both are held at Las Vegas, Nevada, the World Series of Poker has a wider reach, ...