The monastery looks like a castle and inside is the Church, something that is unique for an orthodox monastery
It is an Eastern Orthodox monastery at the monastic state of Mount Athos in Greece, dedicated to the Ascension of Christ.
The monastery of Panagia Spiliotissa (Virgin Mary of the Cave) is built on a rock next to the river Voidomatis,48 km from Ioannina.
Great Lavra is the earliest and biggest foundations on Mount Athos.
In the middle of the 14th century the hermit Varlaam climbed the rock, built a few cells and a small chapel which he dedicated to the Three Hierarchs.