Accordin the legend St. Martin was once imprisoned in a dungeon underneath this church in Worms, which was built in the 12th century. It was the chapter church of the Martinsstift, which no longer survives. Until the 15th century, the Martinskirche was a burial place for the Kämmerer family, named von Dahlberg, whose courts lay nearby in the Kämmererstrasse.
The church is a Romanesque church, with red sandstone walls whose whitewash was recently stripped away. It is a buttress basilica with three naves and a straight chancel. Architectural forms from the 12th century.
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.