Interior view of the hypostyle arcade (Riwaq) inside Ibn Tulun Mosque in the Al-Sayeda Zeinab district of Cairo, one of the oldest and largest mosques in Egypt, built between 876–879 AD by Ahmad ibn Tulun during the Abbasid era. The image captures the dramatic contrast of light and shadow across rows of pointed arches, decorated column capitals with Abbasid-style stucco carvings, stone flooring, and hanging lanterns, with a solitary figure standing in the corridor. Ibn Tulun Mosque is a UNESCO-listed heritage site and a landmark of early Islamic architecture in Africa, featuring a rare spiraling minaret inspired by the Great Mosque of Samarra in Iraq.