The Uqba ibn Nafi Mosque is located in the district of Sidi Uqba in the Wilayat of Biskra. It is one of the oldest mosques in Algeria, and the third oldest mosque in the Maghreb after the Kairouan Mosque in Tunisia and the Abu al-Muhajir Dinar Mosque in the Algerian city of Mila. The mosque has a unique architectural design that makes it classified as the most beautiful mosque in the country, as it is distinguished by its bright white marble floors, a huge dome, a spacious prayer area and rooms for teaching the Holy Quran!