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Rock Church in Lalibela were built not up and down
The city of Lalibela, Ethiopia, there are 11 unique monolithic churches built in the 13th century. The uniqueness of them is that they are not built in the literal sense, and carved into the rocks, so they are flush with the roof surface of the earth, and the courtyard is a deep well.
Among the best known churches cruciform church of St. George. The depth of the construction is 12 meters, it is possible to get in through a tunnel carved in the rock. Church of St. George is integral with the rock in which it carved. Take a look at these pictures - it's pretty impressive!
via factroom.ru