The Mosque and Madrasa of Sultan Qalawun is located on Al-Muizz street. It was one of the great charitable projects built at its time for the aim of serving the people of Cairo. The mosque had a madrasa, a hospital and a mausoleum. An interesting fact about the mosque is that despite its sheer size, it was built in a short time, which was only 13 months. Inside the mosque, the son and mother of Sultan Qalawun are buried, while he himself is buried in the mausoleum built by his father.

The mosque has a slightly horseshoe arched portal that leads to a passage that separates the madrasa from the mausoleum. The minaret of the mosque is attached to the mausoleum. The minaret does not lie on the entrance of the mosque, which was not typical of the mosques of this era. On the inside, the mosque has lots of decorations in marble. The mosque has elements on its inside that are influenced by Norman Sicilian architecture, like the triple windows, which are windows that are composed of two arched openings surmounted by an oculus. The mosque’s madrasa has two iwans and two recesses. The madrasa faces a courtyard and has a mihrab with a horseshoe arch. The mausoleum includes a mihrab that is one of the most lavish of the mihrabs of the other mosques in Cairo. It also has a horseshoe arch but is grander and on a larger scale than that of the madrasa, and is flanked by three columns made of marble. Lastly, the mosque had a hospital that survived and was active till 1910, when it was demolished. The hospital treated the poor and sick. It offered treatment to people in the shape of drugs, shelter, food and clothing. The hospital also produced drugs in a lab inside of it and students were also taught in medicine and research was conducted inside the hospital, which can allow the hospital to be also considered as a medicine school.