phra that phu pek, an ancient temple in sakon nakhon province, in the isan region of thailand. this ancient khmer ruin was built

ancient archeology architecture art asia asian brick buddha buddhism buildings built carving east gedige heritage horizon isan journey khmer landmark lanka majestic museum nakhon nalanda nobody old outdoors palace passage pek phra phu pillars protection province region religion remains ruin ruins sakon sculpture spirituality sri statue stone stupa temple thailand that the this tower travel unesco vihara was