Eidsberg church, also called as Østfold Cathedral, was built in the late 1200s, but burned in 1440. The church was rebuilt, and in 1880-81 it was extended and restored to its present appearance. The wall is derived in part from the old medieval church. Findings suggest an early church about the year 1000, followed by a Romanesque church in 1100-tallet. Alteret the current church is from 1651, the pulpit from 1662. The baptismal font made of soapstone is from the Middle Ages, and two sculptures - Adam and Eve from the 1600s.References:
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.