In a northern part of Bavaria, which is called Fränkische Schweiz, you can find the so called Versturz Höhle Riesenburg.
It is located in the south of the community Wiesenttal-Doos, at the road to Gössweinstein. Only a few meters north of the cave you can find the arch.
It's dimensions: Span: 4,8 m; Height: 8,3 m.
UTM coordinates: 32U 665264 5519320