Lalibela is a town in northern Ethiopia famous for monolithic rock-cut churches. Lalibela is one of Ethiopia's holiest cities, second only to Aksum, and a center of pilgrimage. Unlike Aksum, the population of Lalibela is almost completely Ethiopian Orthodox Christian. Ethiopia is one of the earliest nations to adopt Christianity in the first half of the fourth century, and its historical roots date to the time of the Apostles.