The history of Hohenklingen castle is closely linked to the small town Stein am Rhein and the monastery St. Georgen. Around 1200, Walter von Klingen erected a residential tower on the site of the present castle. Around 1460, the battlements against firearms were installed.
In 1499, at the time of the Swabian war, and from 1618 to 1648 during the Thirty Years' War, the castle played an important role and was enforced. From 1895 to 1897 the city of Stein am Rhein completed a total renovation to the dilapidated castle. The castle was again extensively restored in 2005-2007. Today Hohenklingen is open to the visitors.
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.