The "Islamic World" refers to countries and regions where Islam is the dominant religion or has a significant presence. This includes nations in the Middle East, North Africa, parts of Asia, and even communities in Europe and the Americas. The Islamic World is diverse, encompassing various cultures, languages, and traditions, all united by the teachings of Islam. Central to the Islamic World is the Quran, the holy book of Islam, and the teachings of the Prophet Muhammad. Major cities like Mecca and Medina hold religious significance, attracting millions of pilgrims each year. The Islamic World also includes various sects, such as Sunni and Shia, each with unique beliefs and practices.