Mahasthan, the oldest archaeological site of Bangladesh is on the western bank of river Karatoa 18 km, north of Bogra town beside Bogra-Rangpur Road. The spectacular site is an imposing landmark in the area having a fortified long enclosure measuring 5000 ft. by 4500 ft. Other ancient ruins fan out within a semicircle of about 5 miles radius. Several isolated mounds, the local names of which are Govinda Bhita Temple, Khodai Pathar Mound, Mankalir Kunda, Parasuramer Bedi, Jiyat Kunda etc. surround the fortified city.
This 8th century archaeological site is still held to be of great sanctity by the Hindus. Every year
( mid-April ) and once in every 12 years (December) thousands of Hindu devotees join the ceremony on the bank of river Karatoa. A visit to the Mahasthangarh site museum will open up for you wide variety of antiquities, ranging from terra-cotta objects to gold ornaments and coins recovered from the site. For visiting Paharpur and Mahasthangarh the visitors may enjoy the hospitality of Parjatan Motel at Bogra. Mahasthangarh and Paharpur are only 18 km. and 75 km. respectively from Bogra town.