Mystery of the World is the 19th level in Call of Duty: World War IV.{|class="infobox bordered" style="width:300px;" |- ! colspan="2" style="text-align:center; background-color:#9DB36B; padding:3px;" | Previous level |- | colspan="2" style="padding:5px; text-align:center;" | Florida's Uprising |- ! colspan="2" style="text-align:center; background-color:#9DB36B; padding:3px;" | Next level |- | colspan="2" style="padding:5px; text-align:center;" | Gold City |- ! colspan="2" style="background-color:#9DB36B; padding:5px; color:#FFF; text-align:center;" | Mystery of the World |- Uncover the puzzle.