Ruins of the Buddhist Vihara at Paharpur

Somapura Mahavihara or Paharpur Buddhist Vihara in Paharpur, Badalgachhi, Naogaon, Bangladesh is among the best known Buddhist viharas or monasteries in the Indian Subcontinent and is one of the most important archaeological sites in the country. It was designated as a UNESCO World Heritage Site in 1985. It is one of the most famous examples of architecture in pre-Islamic Bangladesh. It dates from a period to the nearby Halud Vihara and to the Sitakot Vihara in Nawabganj Upazila of Dinajpur District.

Source: Wikipedia