http://www.motorsport.com/f1/news/liberty-eyes-night-f1-race-in-las-vegas-851146/
F1 has been to Las Vegas before, in the form of the Caesar's Palace Grand Prix. But now today, it seems as though the likelihood of Vegas returning to Sin City in the near future has increased, in the form of a potential night race.
But what would the circuit look like? I'm going to leave that to you guys. However, it is highly rumoured that it will take place along the spectacular Las Vegas Strip. I don't mind if your proposal isn't on the Vegas Strip, but it's more likely that the race would be located there. I'd love to see your creative ideas!