Between 1993 and 1996, several archaeological excavation campaigns at the site of Las Eretas partially unearthed the urban fabric of a fortified village from the Early Iron Age, the most significant structural remains of which included the wall and towers that defended it, and several dwellings built around a street and public square which facilitated pedestrian traffic inside the fortress.
The protohistoric village with its houses dates from the 6th to the 4th centuries BC and are typical of the Urnfield culture. Today there is a museum where thematic areas have brief text with illustrations – maps, photographs and drawings –, and a display cases showing original archaeological pieces, both from the Las Eretas site and other Navarrese Iron Age villages which have been investigated.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.