Mosque of Qaytbay (Qal'at al-Kabsh)
Cairo, Egypt
The Mosque of Qaytbay, also known as the Madrasa of Qaytbay, is a historic religious structure in the Qal'at al-Kabsh neighbourhood of Cairo, Egypt. Completed in 1475, it is one of multiple monuments sponsored by the Mamluk sultan al-Ashraf Qaytbay. It is described as both a madrasa and a mosque by scholars, but functions as a mosque today.
Mosque data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).