McCarran International Airport is Las Vegas, Nevada's biggest airport. It has four concourses - A, B, C, and D each with at least 50 gates. They have a couple speedy monorail trams that run back and forth between the main terminal and the D Gates. They have an at least 5-story swirly parking lot. They have many slot machines because it is in Las Vegas, home of the best casinos in the United States.