The popular Battlefield 3 map Noushahr Canals, one of nine multiplayer maps available in the standard edition of the game, has been meticulously recreated in CryEngine 3 by Russian machinima creator TekVol.
Given that the original map looked good enough as it is in DICE’s own proprietary Frostbite engine, I have no idea why you’d want to remake it in another engine—or for what purpose. But it looks cool nonetheless and the video he produced provides a neat flyover the map.