Many of the churches have disappeared. One big one, that of the Mother of God, remaining. In its western front is a large hall, a zhamatun. The church itself has suffered and is merely a shell, its dome missing.
From the site Virtual Ani I quote: "Its characteristic feature are the four, nearly circular, "niches" that are set into the masonry between the apses and the corner rooms.

The walls are surprisingly crudely built: rubble masonry behind a thick layer of plaster. The vaults, with pointed arches, and upper part of the walls are of brick. There was a dome over the central space. This was also built of brick and was supported by a brick drum, cylindrical inside and dodecagonal outside. "