The Old City of Jerusalem is a historic area located within the modern city of Jerusalem, Israel. It is divided into four quarters: the Jewish Quarter, Christian Quarter, Muslim Quarter, and Armenian Quarter. This compact area is home to significant religious sites, including the Western Wall, the Church of the Holy Sepulchre, and the Dome of the Rock. The Old City is surrounded by ancient walls built in the 16th century by Sultan Suleiman the Magnificent. It covers approximately 0.9 square kilometers and has been a focal point of religious and cultural significance for thousands of years. The area is a UNESCO World Heritage Site, attracting millions of visitors annually.