Khachkars as building stones
Surp Arakelots (Holy Apostles church) at the Sevanavank, a monastic complex located on a peninsula at the northwestern shore of Lake Sevan in the Gegharkunik Province of Armenia.
The monastery of Sevanavank was founded in 874 by Princess Mariam, the daughter of Ashot I (who became a king a decade later).
Surp Arakelots was built in 874. It has an elongated western end creating a square hall. The octagonal drum is placed over the main hall, supported by arches resting on pendentives rising from the main square.
A khachkar, or Armenian cross-stone is a carved memorial stele bearing a cross, and often with additional motifs such as rosettes, interlaces, and botanical motifs. Khachkars are characteristic of Medieval Christian Armenian art.