Castle of the counts of Gruyères built
1270 CE.
Shown on the map at 46.585°, 7.084°.
The Castle of Gruyères (in French: château de Gruyères), located in the medieval town of Gruyères, Fribourg, is one of the most famous in Switzerland. It is a Swiss heritage site of national significance.
Text from the Wikipedia article Gruyères Castle, licensed CC BY-SA 4.0.