the nimogram stupas believed to have been built in 2-3 century

nemogram stupa swat valley uddiyana kushana buddhist buddhism monastery religion history archaeology ruins sculpture pakistan stone stucco complex gandhara site monument place kpk civilization gumbat khyber pakhtunkhwa temple heritage culture visit buddha old rocks antiquities viharas archeology architecture mountains dome stones ancient ruin asia hinduism hemisphere artefact hindu shahi kushan nimogram stupas believed built 2-3 century nimogram