Passage: African art and architecture reflect the diversity of African cultures. The region's oldest known beads were made from Nassarius shells and worn as personal ornaments 72,000 years ago. The Great Pyramid of Giza in Egypt was the world's tallest structure for 4,000 years, until the completion of Lincoln Cathedral around the year 1300. The stone ruins of Great Zimbabwe are also noteworthy for their architecture, as are the monolithic churches at Lalibela, Ethiopia, such as the Church of Saint George.

Question: Name a church with monolithic architecture.
Church of Saint George