Salah al-Din al-Ayyubi Citadel or Mountain Castle 🇪🇬☪️ Salah al-Din Citadel is one of the most important landmarks of Islamic Cairo, and one of the most ancient military castles built in the Middle Ages. Its strategic location at the top of Mount Mokattam provided a wonderful view of all of Cairo’s historical landmarks. The fortified walls around the capitals of Islamic Egypt, along with the citadel, provided further protection against any attack. .