The first evidence of Pyhtää as an independent parish dates back to 1380. At that time already the parish had a church, but it is not known where it was situated or what it looked like. Until 1600 Pyhtää included, besides its present area, also half of the present city of Kotka, Ruotsinpyhtää, Elimäki, the western parts of Anjalankoski, and a part of Lapinjärvi.
Dedicated to St. Henry, the church is situated where one of the westernmost branches of the river Kymi meets the ancient Turku-Viipuri coast road.
The building resembles the majority of the Finnish medieval stone churches. Pyhtää church, built about 1460, has retained its original medieval appearance almost untouched. There have been few alterations: the porch was converted into a memorial choir during the latter half of the 18th century, and in connection with repairs in 1907, buttresses were built to support the north wall and the sacristy was fitted with the outer entrance.
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.