anatomy biohazard biology bone danger dead death hazard icon pictogram pirate raw-head security skull symbol Amman ancient archaeology city historic history jordan landscape landscapes middle east modern ruin ruins tourism town background blue christmas christmas tree hi-res poster Santa senta claus snow snowflake tree vector xmas autumn campo country field fresco hierba olor otoño pueblo romanic romanico rural smell tradicional tradition village bicycles care caution cyclists dangers green illustrated movement pavement pedestrians people room for two symbols walking