Halud Vihara is south of the World Heritage Site of Somapura Mahavihara, at Pahapur in the Naogaon District of Bangladesh. The main feature of the site is "a large mound stretching in east-west and in north-south. It has a height of .[1] A brick structure has been exposed at the top of the mound that seems to be the remains of a large hall. A flight of stairs have been excavated on the eastern slopes of the mound. There are other mounds and remains of brick structures. Some sculpture has been removed from the site, which has also suffered considerably from the local inhabitants removing bricks for reuse. It is located at Halud Vihara village, which is also locally known as Dvipganj. Excavations show that it was an early Medieval Buddhist site, from a similar time period to Somapura Mahavihara and to the Sitakot Vihara in Nawabganj Upazila of Dinajpur District.
This site was added to the UNESCO World Heritage Tentative List on February 17, 1999, in the cultural category.[1] [2]