Thallichtenberg, Italy
Lichtenberg Castle (German: Burg Lichtenberg) is a ruin of the spur castle type; with a length of 425m (1,394 ft) it is the biggest castle ruin in Germany. It is located near Thallichtenberg in the district of Kusel in Rhineland-Palatinate.
Listen to the audio guide for Lichtenberg Castle Free on WIP — starts by itself when you arrive, even with the screen off