As for Vegas, there are a ton of places to check out if you're heading there for poker. The major casinos like Bellagio, Aria, and the Venetian all have great poker rooms with cash games and tournaments running daily.
If you're looking for more information on poker tournaments or just want to get a better grip on the different types of games, there are plenty of resources out there to help you understand the structure and differences between cash games and tournaments. A great starting point can be found on
themulligans.org, where they offer useful guides and articles on poker strategies, tournament structures, and tips on bankroll management.