Aerial view of the ruins of Takht-i-Bahi, a 1st-century CE Buddhist monastery complex located in what was once the ancient Indian region of Gandhara, in the present-day northern Pakistani province of Khyber Pakhtunkhwa. It is representative of Buddhist monastic architecture from its era and the ruins were listed as a World Heritage Site in 1980, with UNESCO describing it as having been "exceptionally well-preserved".