Exterior view of the Sultan Hassan Mosque (built 1356–1363, Mamluk era) and Al-Rifai Mosque (completed 1912, Neo-Mamluk style) captured at golden hour from Salah El Din Square, Historic Cairo. The ornate crenellated facade, pointed arched portals, and stacked minarets of Sultan Hassan Mosque dominate the left, while the partially ruined wall and minaret of Al-Rifai Mosque appear to the right. The dome and minaret of the Citadel of Salah El Din (القلعة) are visible in the background between the two structures. This ensemble is one of the most significant concentrations of medieval Islamic architecture in the world, located in the Al-Khalifa district of Historic Cairo, a UNESCO World Heritage Site.