Damascus is believed to be the oldest continuously inhabited city in the world, with archaeological evidence indicating that it was inhabited as early as 9000 BC. The city is located in southwestern Syria, and is the capital of the country. Damascus has a rich history, and has been ruled by a variety of civilizations, including the Greeks, Romans, Byzantines, Arabs, and Ottomans. The city is known for its ancient architecture, including the Umayyad Mosque, which is one of the oldest and largest mosques in the world. Damascus is also home to a number of historical sites, including the Citadel of Damascus, which dates back to the 12th century. The city is a UNESCO World Heritage Site, and is a popular tourist destination.