St. Nicholas Church in Altefähr was built of brick in the second half of the 15th century to the site of earlier 13th century chapel. It was painted in 1692 and the tower restored. The next renovation took place in 1737. After the upper third of the tower had collapsed in 1803, the tower was rebuilt. Another extensive renovation of the church took place in 1912-1913. The interior contains valuable wall murals from the 15th century.References:
Narikala is an ancient fortress overlooking Tbilisi, the capital of Georgia, and the Kura River. The fortress consists of two walled sections on a steep hill between the sulphur baths and the botanical gardens of Tbilisi. On the lower court there is the recently restored St Nicholas church. Newly built in 1996–1997, it replaces the original 13th-century church that was destroyed in a fire. The new church is of 'prescribed cross' type, having doors on three sides. The internal part of the church is decorated with the frescos showing scenes both from the Bible and history of Georgia.
The fortress was established in the 4th century and it was a Persian citadel. It was considerably expanded by the Umayyads in the 7th century and later, by king David the Builder (1089–1125). Most of extant fortifications date from the 16th and 17th centuries. In 1827, parts of the fortress were damaged by an earthquake and demolished.