While in Cairo, a visit to the Citadel is customary for many tourists. While there, remember that just below are two mosques that merit a visit. Located side by side are the Mosque of al-Rifai and the Mosque of Sultan Hassan with a narrow alleyway between them. A pleasant park is just below where you can take a few moments to reflect. The walk from the Citadel's gate is long and hot, but a cab ride cost us about 20 pounds or about 4 dollars. Our driver was pleasant and the ride saved our feet for later pursuits.
The Mosque of al-Rifai wasn't founded until 1819 and wasn't finished until 1912. The Mamluk style belies its relatively recent construction. Inside are many elaborate tombs including one for King Farouk, last king of Egypt - and the tomb of the Shah of Iran. The interior spaces soar high above the visitors and are richly carpeted. The Shah's grave is decorated with dozens of bouquets of flowers which are left there to wither, perhaps a reminder that people still honor him. While we were there, many people came to pay respects to the Shah.
As with many mosques visited by tourists, there is an attendant who takes your shoes for a small tip. He also dispenses bright green robes for women who are not modestly dressed. Your shoes are safe with him. No ticket, but he remembers who you are and gives you back your shoes with a smile. I highly recommend a visit to this mosque and the Mosque of Sultan Hassan across the narrow court.