The oldest known city in Bangladesh, dating back to at least the 3rd century BC, Mahasthangarh (an easy half-day trip from Bogra) is an archaeological site consisting largely of foundations and hillocks hinting at past riches.
The principal site, the Citadel, contains traces of the ancient city. Many other sites in the vicinity are lumped together under the name Mahasthangarh. The whole area is rich in Hindu, Buddhist and Muslim sites, but most have all but vanished. The Buddhists were here until at least the 11th century; their most glorious period was the 8th to the 11th centuries, when the Buddhist Pala emperors of North Bengal ruled. It is from this period that most of the visible remains belong.