The Barbarossa Cave is a geological rarity because it is made of anhydrite rocks which are extremely rare in comparison to limestone caves. In fact, there is only one other anhydrite show cave on the planet. The rare beauty and special character of the Barbarossa Cave stems from the rock’s environment in which it developed. The fascinating combination of nature and history is also sure to make a visit an unforgettable experience for visitors of every age as the myth of Barbarossa from the 14th century – the belief in the return of the enchanted Emperor Rotbart (Redbeard) – lives on in the Kyffhaeuser.