var vtn_player_type = "vp";var ven_video_key="NTk3MDA0fHwxNDcxfHwwfHx8fHx8";var ven_width="660";var ven_height="409";A towering 12-meter-high sandcastle in Brazil by an American artist is vying for the world record for the tallest of all time. Duration: 00:36