In the 15th-16th century the settlement of Keila consisted some tens of buildings and a hundred people formed around the church. At the same time the Livonian Order built a small fort south-east of the church on Jõepark. During the Livonian War of 1558-1583 the settlement was destroyed.Further hampered by the plague and starvation in 1601-1602 the population declination reduced the community to a small church village. Ruins of the fort were first excavated in 1976 with continued finds up to 2007.
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.