Three Dome Mosques (Tin Gombuj Masjid), one of the oldest structures of the Mughal period, is located at Ferozepur in Shahbazpur Union of Shivganj Upazila of Champainawganj district.Bengal Sultan Shah Souza built the mosque addressed by Shah Syed Nyamatullah, a famous Islamic preacher of the Middle Ages. The historic archaeological site, listed by the Department of Archaeology in Bangladesh, is also known as Shah Nayamat Ullah Mosque.The rectangular three dome mosque has a huge mosque room, 3 mihrab, and 3 entrances to the front. The middle door of the 3 entrances is relatively large. Near the mosque are the tomb of Shah Nayamat Ullah and a two-story edifice of the Mughal period built by Sultan Shah Souza. The sultan Shah Souza’s building, 116 feet in length and 38 feet in width, is known as “Tahakhana.” The three domes belong to the mosque, the palace, and the tomb of Shah Nayamat Ullah belong to the Tahakhana complex. Sultan Shah Souza built this building to facilitate his Morshed Hazrat Shah Nayamat Ullah’s stay in the winter.