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:The ancient Argos Theater was built in 320 BC. and is located in Argos, Greece against Larissa Hill. Nearby from this site is Agora, Roman Odeon, and the Baths of Argos. The theater is one of the largest architectural developments in Greece and was renovated in ca 120 AD.
The Hellenistic theater at Argos is cut into the hillside of the Larisa, with 90 steps up a steep incline, forming a narrow rectilinear cavea. Among the largest theaters in Greece, it held about 20,000 spectators and is divided by two landings into three horizontal sections. Staircases further divide the cavea into four cunei, corresponding to the tribes of Argos A high wall was erected to prevent unauthorized access into the theatron and may have helped the acoustics, but it is said the sound quality is still very good today.
Around 120 CE, both theaters were renovated in the Roman style.