SALTA, Argentina - Museumgoers gasped Thursday at the well-preserved mummy of an Inca maiden which is on display for the first time, a serene gaze etched on her face hundreds of years ago when she froze to death in the Andes. Hundreds of people packed a museum in Salta, Argentina, to see "la Doncella" — Spanish for "the Maiden" — a 15-year-old girl whose remains were found in 1999 in an icy pit on Llullaillaco volcano, along with a 6-year-old girl and a 7-year-old boy. Scientists believe the so-called Children of Llullaillaco were sacrificed more than 500 years ago in...