Rottenegg Castle - Credit: Wikimedia Commons
Rottenegg Castle () is a ruined castle near the village of Rottenegg in the municipality of Sankt Gotthard im Mühlkreis, Austria. It dates to the 13th century, and was built to protect a medieval trade route. After 1712 the castle was allowed to decay, and much of it has disappeared. Read more on Wikipedia
Source: en.wikipedia.org