Kittelsthal Dripstone Cave - Credit: Wikimedia Commons
Kittelsthal Dripstone Cave (German: Kittelsthaler Tropfsteinhöhle) is a cave in the Thuringian Forest. It is located in the Kittelsthal district of the town of Ruhla in the Wartburg district. The cave is accessible via a former mine. The total length is 726 meters; during guided tours it is walked along a length of 158 meters. One reaches the cave, which is 48 meters lower, via 228 steps. The first natural cavities were discovered in 1888. In 1894 it was turned into a show cave and opened in 1896. Between 1968 and 1992 there were no guided tours in the cave. Read more on Wikipedia
Source: en.wikipedia.org