A monolithic church (or monolithic church, or rock church) is a church built in a block of stone. This kind of church is usually on a hill or mountain slope and its complexity of architecture can be compared to that of buildings. It can also be a cave summarily arranged, even decorated only (sculptures, frescoes, statues).
A church can also be partially rocky by being built on a bare ground in front of the rock, then enlarged in the rock for reasons of place or defense. Finally, a church can have a rock section that is a sanctuary or a crypt.