One of the largest mosques in the world when it was completed in 1994, with space for 15,000 worshippers. The architecture blends traditional Islamic forms with modern scale — twin minarets rise 107 metres, and the main prayer hall is covered by a massive dome. The mosque also houses an Islamic university.
Named after Emir Abdelkader, the 19th-century leader who led Algerian resistance against the French invasion, the building is visible from across the city and dominates the modern southern districts of Constantine. The interior is impressive for its sheer size and the quality of the carved stonework and calligraphy. Non-Muslim visitors are generally welcome outside prayer times.