Wikipedia
Kuhstall (Saxon Switzerland)
The Kuhstall is the second largest natural arch in the Elbe Sandstone Mountains after the Prebischtor. It is located on the Neuer Wildenstein, a 337 m high rock outcrop in the hinterland of Saxon Switzerland, south of the Lichtenhain Waterfall and above the Kirnitzsch valley. It is crowned by the 15th-century castle of Wildenstein. The arch is 11 m high, 17 m wide and 24 m deep.