The Ruisi cathedral is a
cross-in-square church, measuring 27.3 × 19.6 m and rising to the height of 23.3 m. It is built of well-dressed sandstone blocks, with the additional use of basalt, limestone, and brick at the time of reconstruction. The building stands on a plinth of two steps. It can be accessed through three rectangular doorways, on the west, south, and north. A
narthex, attached to the west door and open in a series of arches on three sides, is a 15th-century annex. The tall
dodecagonal dome rests upon four free-standing piers. The transition from the square central
bay to the circular plan of the
drum is effected through
pendentives. The dome is pierced by 12 windows, six of them built up in the 15th century. Two more columns are positioned in the western part of the bay. A somewhat deformed horseshoe
apse is at the tip of the deep
bema. A tall arched window is cut in the apse, with an arched niche below it. The sanctuary is flanked by
pastophoria on either side, connecting to the corresponding
naves with arched openings. Both are covered with
domical vaults, supported by four
squinches. The sanctuary is separated from the rest of the bay by an ornate wood-engraved
iconostasis installed in 1781. Fragments of the late medieval frescoes are visible in part of the interior. The dome has tinplate roofing; the rest of the roof is tiled. The façades are adorned with decorative stone carvings, especially around the doorways and windows. A special decorative feature of the cathedral is polychromy, both exterior and interior. The façades and the interior of the northern aisle are laid out in colorful quadras. The ornament of the apse floor is adorned in three color stones. Fine ornamentation covers cornices. West of the church stands a bell-tower built in a defensive wall which encircles the entire complex. Constructed in the 17th century, it is a three-storey structure, measuring 7.4 × 6.8 m. Its ground storey contains arched passage, the first was a guardhouse, and the upper a belfry. == References ==