bas-relief of lion biting a goat at staircase of tripylon or palace of three gates

achaemenid empire alexander great ancient architecture artaxerxes attraction bas relief bite cyrus darius destination famous fars gate goat heritage historic historical history iran kuh-e rahmat landmark lion marvdasht year nowruz old persepolis persia persian ruin shiraz staircase stone symbol terrace tourism tourist travel tripylon unesco world wall xerxes zoroastrianism