Burg Eltz is a medieval castle nestled in the hills above the Mosel River between Koblenz and Trier, Germany. It is still owned by a branch of the same family that lived there in the 12th century.
Some parts of castle are open for visitors (But it's not allowed to take any pictures).
We walked for almost an hour to get to the castle (which was really fun).
If you want to know more about the castle, take a look at the official site of Burg Eltz .