The open marble-paved courtyard (Sahn) of Muhammad Ali Mosque, also known as the Alabaster Mosque, located inside the Citadel of Salah El-Din (Al-Qala'a) in Cairo. At the center stands the octagonal marble ablution fountain (Mida'a) topped with an intricately carved and gilded wooden octagonal dome supported by ornamental arches. In the background, the bronze clock tower — a diplomatic gift from French King Louis-Philippe to Muhammad Ali Pasha in 1846 — is visible alongside the mosque's arcaded galleries. Two visitors provide scale against the grand Ottoman-style architecture under a clear blue sky.