Nightline's Bill Weir toured the long-delayed yet recently-opened Cosmopolitan Hotel in Las Vegas, including José Andrés' Jaleo. The Spanish chef warned him that an Iberico ham-and-caviar taco was a serious commitment because after one eats it "your life is going to change forever." Also, Cosmopolitan CEO John Unwin described the ideal end result of a weekend at the hotel as "a hangover with a smile." We guess that's a good thing?
Video: Nightline's Tour of the Cosmopolitan Hotel in Las Vegas