Among the architectural pillars of Zangezour, the monastery of Tatev does not have its "rivals". It used to be the wealthiest medieval monastery in Armenia. Besides being a religious center, Tatev was also the important strategical center of Syunik kingdom. Being situated on a naturally defended place, Tatev monastery has always been an impregnable fortress for alien. In non-stable political conditions several secret ways in the territory of the fortress led to the canyon and served as a link between the monastery and the external world.