Biete Qeddus Mercoreus is an underground Orthodox rock-cut monolith church located in Lalibela, Ethiopia. It was built during the Kingdom of Axum.[1][2] It is part of UNESCO World Heritage Site at Lalibela.[3] Biete Qeddus Mercoreus (House of St. Mercoreos/House of St. Mark) may be a former prison because of ankle shackles found there.[1]
12°01′54″N 39°02′44″E / 12.03157°N 39.04548°E / 12.03157; 39.04548