Sitting atop the Moqattam Hills within the fortified Cairo Citadel is the impressive Islamic Mosque of Muhammad Ali. This famous place of worship was built with limestone in the mid-nineteenth century by Muhammad Ali Pasha al-Mas’ud ibn Agha. Many people consider him to be the father of modern Egypt. This Ottoman-style mosque consists of one central dome and four semi-domes. The two minarets are over 260 feet tall. This landmark structure, also called the Alabaster Mosque, is visible throughout much of Cairo, Egypt.