Al-Mu'izz Street is a historic street located in the heart of Islamic Cairo, Egypt. It is one of the oldest and most important streets in Cairo, and it is known for its well-preserved architecture and historic monuments. The street was built during the Fatimid era in the 10th century and was the main thoroughfare of the city. It is named after the fourth Fatimid Caliph, Al-Mu'izz li-Din Allah, who ordered the construction of the street. Today, Al-Mu'izz Street is lined with numerous historic buildings and monuments, including mosques, palaces, and markets.