???????? kaifeng iron tower in henan, china

landmark tower tree monument temple building plant ruins statue shrine tourism memorial park ???????????????1049????“?????”??????55 88????13???????????????????????????????????????“????”???????????????????????????“??”? iron located northeast corner kaifeng city was built 1049 known first world meters high has octagonal floors tallest oldest most fully preserved glazed brick china therefore once kaibao also pagoda due widespread use brown bricks resembling cast been people since yuan dynasty ???????? henan