Wörschach, AT
Burgruine Wolkenstein is a high medieval castle in Styria, Austria. Burgruine Wolkenstein is 450 metres (1,480 ft) above sea level. Though it exists only a wall today, the castle used to by the second largest fortified castle in Styria.
Listen to the audio guide for Burg Wolkenstein Free on WIP — starts by itself when you arrive, even with the screen off