The Sisavan Church, which is also known as St. Gregory Church or St. Hovhannes Church, is located northwest of Sisian in Syunik Province. Historians disagree on the exact date of the construction of the church (between 6-7th century).

The facade of the church is decorated with niches in the form of arches. On the territory adjacent to the church, there are khachkars (cross-stones) and a cemetery with tombstones typical of the Middle Ages.

Sisavan is a vivid example of early Armenian architecture. The church has reached our days in its original form with virtually no changes.