Poti Cathedral is an imitation of Hagia Sofia in Istanbul, and it was built in 1906-07 with the great contribution of Niko Nikoladze, the mayor of Poti. Notably, Niko Nikoladze chose the location of the cathedral in the center of the town to make it viewable from every side of Poti.
A. Zelenko and M. Marfeld were the architects of this Neo-Byzantine cathedral and the capacity of the church is 2,000 people. The ornaments and decorations are modeled after the medieval Christian cathedrals in the Trabzonmountains. The Poti Cathedral has three iconostases and among the main decoration of the iconostasis are the icons of St. Nino, St. Andrew the First Called, and the St. David the Builder.
This is one of the earliest examples of reinforced concrete applied to a church. The Hennebique system was employed following a project made by the office's engineers in Paris. Several projects were made, but because of the bad soil, a traditional solution in masonry was not adequate. So, the reinforced concrete was used for the foundations and the entire structure, domes comprised.
In 1923, after the Red Army invasion of Georgia, the Communist government turned it into a theater and the bells were donated to the industrialization foundation. In 2005, the cathedral was restored to the Georgian Orthodox Church.
References:Celje Castle was once the largest fortification on Slovenian territory. The first fortified building on the site (a Romanesque palace) was built in the first half of the 13th century by the Counts of Heunburg from Carinthia on the stony outcrop on the western side of the ridge where the castle stands. It had five sides, or four plus the southern side, which was a natural defence. The first written records of the castle date back to between 1125 and 1137; it was probably built by Count Gunter. In the western section of the castle, there was a building with several floors. Remains of the walls of this palatium have survived. In the eastern section, there was an enclosed courtyard with large water reservoirs. The eastern wall, which protects the castle from its most exposed side, was around three metres thicker than the rest of the curtain wall. The wall was topped with a parapet and protected walkway.