1. The Sultan Hassan Mosque and Madrassa is a monumental mosque and school complex located in Cairo, Egypt. It was built by Sultan Hassan bin Muhammad bin Qala’un between 1356 and 1363, during the Mamluk era. The mosque is considered one of the finest examples of Islamic architecture in Egypt and the Islamic World. It features a massive central courtyard, a minaret, and numerous vaulted halls and corridors. The mosque’s intricate decoration includes tilework, carvings, and inscriptions made from stone, marble, and wood. One interesting fact about the mosque is that it was used as a hospital during the plague epidemic in the 19th century.

2. The Sultan Hassan Mosque and Madrassa is open to visitors daily from 8 am to 5 pm. Their phone number is +20 2 23631022.

3. Tickets to enter the mosque and madrassa cost 100 Egyptian pounds (approximately $6 USD) for foreigners and 50 Egyptian pounds for Egyptians. Visitors should wear modest clothing and remove their shoes before entering the mosque. The mosque is accessible by car, taxi, or public transportation.