the large stupa kiri vehera, ancient city of polonnaruwa, sri lanka

12th ancient archaeological archaeology architecture asia blue buddhism buddhist building century city cloud colour culture dagoba day destinations dome exterior heritage history horizontal image interest kiri landmark lanka lankan large moon national old ornate outdoors past photography place places pointed polonnaruwa rankot rankoth religion roof site sites sky sri step stone stupa temple travel unesco vehera view vihara white world worship