the remains of ancient bhudha civilization double dome stupa in the balo kaley built in the 2nd century

balo kaley stupa double dome gumbat gumbatuna history barikot swat valley pakistan balokaley kandak buddhist doubledome century monastery tourists architecture archaeology attraction khyber pakhtunkhwa site masterpiece ancient archaeological mountain shrine stupas landmark gandharan south asia cultural art monument votive cult buddhism temple heritage historical stone sculpture archeology vihara religion buddha religious remains bhudha civilization built 2nd