Utti fortress was built by Russians in 1791-1792 as part of the South-Eastern Finland fortification system. It contained a main bastion system and two outer redoubts. It was meant to hold Swedish army until Taavetti fortress is occupied with reserves and ready to fight.
Only one battle was fought in Utti during the Russo-Swedish War in 1789. Utti lost its military value in 1809 when Finland was joined to Russia. It was disbanded quite soon. Today the main fortress is renovated and open for visitors.
The Château du Haut-Koenigsbourg is situated in a strategic area on a rocky spur overlooking the Upper Rhine Plain, it was used by successive powers from the Middle Ages until the Thirty Years' War when it was abandoned. From 1900 to 1908 it was rebuilt at the behest of the German kaiser Wilhelm II. Today it is a major tourist site, attracting more than 500,000 visitors a year.
The first records of a castle built by the Hohenstaufens date back to 1147. The fortress changed its name to Koenigsburg (royal castle) around 1157. The castle was handed over to the Tiersteins by the Habsburgs following its destruction in 1462. They rebuilt and enlarged it, installing a defensive system designed to withstand artillery fire.
The fortification work accomplished over the 15th century did not suffice to keep the Swedish artillery at bay during the Thirty Years War, and the defences were overrun.