 The cathedral is set on a flat lowland, amidst the old town of Mtskheta as its most significant construction, visible from nearly every spot.The base of the three-storey basilica, supposed to have been built by Vakhtang Gorgasali after St.Nino's original church, was found by archaeologists during the restoration of 1970-71.Its remnants can be seen in the western and southeastern parts, as well as under the pillars below the floor.