article_snippet.sent: Scroll down for video .
article_snippet.sent: The memorial site attracted headlines in 2014 when an Alabama teenager took a  selfie during a tour of the death camp .
article_snippet.sent: Omaha and Utah beaches – D-Day invasion scenes, France .
article_snippet.sent: Killing fields – Cambodia .
article_snippet.sent: A group of children who survived the camp, pictured .
article_snippet.sent: It also attracted headlines in 2014 when an Alabama teenager was criticized for taking a smiling selfie during a tour of the German death camp.