Wikipedia
Mühlsteinbrüche
The Mühlsteinbrüche ("Millstone Quarries") south of Jonsdorf in the Zittau Mountains in Saxony are a region of bizarre rock formations, which have been formed by the quarrying of sandstone for millstones and also by weathering processes. They are a popular hiking and climbing area. An educational trail runs through the region which has an area of about 35 hectares.