Actually, vank already means monastery in Armenian, but not everybody speaks the language. Hovhannavank is the Monastery of John, and is located north of Ashtarak, at the edge of the Kasakh Gorge, quite a spectacular setting. In the distance one can just about make out that other monastery at the gorge, Saghmosavank.
Hovhannavank is the oldest of the two, its basilica dating from the 5th Century, although it has been rebuilt since, several times. However, the main construction, of the gavit and the Churchg of Saint John, are 13th C. A gavit is a typically Armenian church element, used in the construction of early Medieval churches. There are various types, but all involve a vaulted extension to the church, serving as entrance, assembly room and often also mausoleum, with tombs in between the columns. Quite attractive, actually. Many of the columns have been variously decorated, with properly styled and sculpted images as well as crosses carved seemingly spontaneously, as a mark of respect by people who have stayed in the area.
The church is mostly decorated by carvings and reliefs. The most famous one is above of of the doors, depicting Christ and the five wise virgins and the five foolish virgins. Except that somebody noticed that these virgins have beards. Which may point at the Last Judgement, instead.