Niederwalddenkmal monument was constructed to commemorate the foundation of the German Empire after the end of Franco-Prussian War. The first stone was laid on September 16, 1871, by Wilhelm I. The sculptor was Johannes Schilling, and the architect was Karl Weisbach. The total cost of the work is estimated at one million gold marks. It was inaugurated on September 28, 1883. The 38 metres tall monument represents the union of all Germans.
The central figure is the 10.5 metres tall Germania figure. In the sculptured impression, Germania holds the recovered crown of the emperor in the right hand and in the left the Imperial Sword. Beneath Germania is a large relief that shows emperor Wilhelm I riding a horse with nobility, the army commanders and soldiers. The relief has the Wacht am Rhein (Watch on the Rhine) lyrics engraved. On the left side of the monument is located the peace statue. The war statue is located on the right.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.