The Federal Democratic Republic of Ethiopia is a landlocked country located in the Horn of Africa. It is known for its diverse cultures, languages, and landscapes, ranging from mountains to deserts. Ethiopia is one of the oldest nations in the world, with a rich history that includes being the site of the ancient Kingdom of Aksum, which was an early center of Christianity. Ethiopia operates under a federal system of government, which divides the country into regional states based on ethnic lines. The capital city is Addis Ababa, which serves as the political and economic hub. Ethiopia is also notable for being the origin of coffee and is home to several UNESCO World Heritage Sites, including the rock-hewn churches of Lalibela.