Article Photos: New nature and science museum to open in Dallas 1/6

  Visitors walk outside the front entrance of the of the Perot Museum of Nature and Science during a media preview in Dallas, Wednesday, Nov. 14, 2012. The museum set to open Dec. 1 was named for billionaire former presidential candidate Ross Perot and his wife, Margot, after their five children made a $50 million gift in honor of them. (AP Photo/LM Otero)