The lights of Las Vegas shine 24 hours a day, inviting millions of visitors from all over the world to come have fun in this crazy city. But with so many lights and so many people, Vegas needs a lot of water and energy. Where does it all come from?
Would you stop a historical tragedy from happening if you could? Or would you change something that affects you personally? We asked teens from Las Vegas, Nevada, what they would change if they could go back in time.
