Saudi Arabia, officially known as the Kingdom of Saudi Arabia, is a vast and influential country located on the Arabian Peninsula in the Middle East. Renowned for its significant role in Islam as the birthplace of the Prophet Muhammad and home to the two holiest cities, Mecca and Medina, Saudi Arabia is a crucial center for Islamic pilgrimage. Riyadh, the capital and largest city, is a modern metropolis, while Jeddah serves as a key port city on the Red Sea. The country is characterized by vast deserts, including the Rub' al Khali, the largest continuous sand desert in the world. Saudi Arabia possesses substantial oil reserves, making it a major player in the global energy market. The government follows a monarchy system, and its society is deeply rooted in conservative Islamic traditions, with recent efforts toward economic diversification and social reforms.