NASCAR Weekend; March: Held at the Las Vegas Motor Speedway, this gas-guzzling weekend is the Nevada city’s leg of a nationwide racing championship. Las Vegas’s edition ranks among the best-attended.
World Series of Poker; May to July: Anyone can enter this seven-week epic, so long as they agree to the $10,000 buy-in. With a guaranteed first prize of $1million, many do. The bash is held at the Rio, with various competitions in Texas hold 'em.
National Finals Rodeo; December: Considered a Super Bowl for the rodeo world, this ten-day, cowboy-crammed spectacle see titles like the World All-Around Rodeo Champion dished out. A whopping 175,000 attend, with tickets distributed by lottery a year beforehand.