the balo kaley archeaology site featured the landmark monument of the great shrine, the oldest example of double-dome gandharan

balo kaley stupa double dome gumbat gumbatuna history swat valley pakistan kandak buddhist doubledome century monastery tourists architecture archaeology attraction khyber pakhtunkhwa site masterpiece ancient archaeological shrine two stupas landmark gandharan south asia venue monument tourism buddhism temple heritage historical historic stone sculpture archeology vihara uddiyana religion buddha religious famous barikot archeaology featured great oldest double-dome