“The Kyffhäuser Monument (German: Kyffhäuserdenkmal), also known as Barbarossa Monument (Barbarossadenkmal), is a monument built under Emperor William in the Kyffhäuser mountain range in the German state of Thuringia. It was erected in 1890–96 at the site of medieval Kyffhausen Castle near Bad Frankenhausen … Stylistically, it recalls the castles and fortresses of the Hohenstaufen era in Germany in the 12th and 13th centuries. In the beginning period of Wilhelminism, it was intended to suggest that the Prussia-dominated German Empire founded in 1871 was the legitimate successor to the medieval Holy Roman Empire. It also signifies the national theme of decline and rebirth.” Source: https://en.wikipedia.org/wiki/Kyffh%C3%A4user_Monument.