America's Dirtiest Cities
No. 13 Las Vegas
It’s the No. 2 city for wild weekends, cocktails, and people-watching—so it’s no wonder that the place may look a little worse for wear. But Sin City is trying to clean up its image, in one way: a new city ordinance says that the guys handing out adult-oriented flyers on the sidewalks now have to pick up any dropped cards every 15 minutes.