Tourists take a "selfie" on the top of the Pyramid of the Moon at the Teotihuacan archaeological site on the outskirts of Mexico City, March 30, 2014. REUTERS/Mariana Bazo (MEXICO - Tags: SOCIETY ... more 
Tourists take a "selfie" on the top of the Pyramid of the Moon at the Teotihuacan archaeological site on the outskirts of Mexico City, March 30, 2014. REUTERS/Mariana Bazo (MEXICO - Tags: SOCIETY TRAVEL) less 
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Reuters | Photo By MARIANA BAZO / REUTERS
Sun, Mar 30, 2014 9:59 PM EDT