A really large ruin complex of the former Hohenurach prison fortress. The Urach Waterfall can be seen and heard from there. There are still a few rooms, cellars, dungeons and …
As already described here, the ruin is today a very worthwhile destination and should not be missed during a visit to the Urach waterfall.
A little history:
The once proud castle Hohenurach was built in the middle of the 11th century under the then Count of Urach.
In the following centuries, the ownership changed and the castle was part of numerous conflicts, especially in the Thirty Years' War. Until 1694 a heavy lightning strike in the Powder Tower destroyed large parts of the fortress and this was finally abandoned in 1761.
In more detail: de.wikipedia.org/wiki/Burg_Hohenurach