Beautiful photos and article about Ethiopian Orthodox cave churches:
on BBC Travel - In Ethiopia, an adrenaline-filled act of faith
Ethiopia’s little-known churches
With their sheer cliffs, surreal rock formations and vertical spires, northern Ethiopia’s Gheralta Mountains recall stretches of the southwestern United States’ red desert landscape. The primary difference: perched high and tucked away into these mountain cliffs are some of the country’s least visited rock-hewn Ethiopian Orthodox cave churches, some of which are more than 1,000 years old.