Bischofstein Castle

Bischofstein Castle is a castle by the Moselle in Germany. It sits between Moselkern and Hatzenport; these and the castle face the borough of Burgen. It was a stronghold belonging to the Archbishops of Treves.

Characteristics are its tall, cylindrical tower girt midway-up with white plaster and the ruinous walls of a small chapel adjoining. The tower is specifically a donjon,.

The castle was built in 1270, destroyed in 1689 and rebuilt again in 1930. It was purchased in 1954 by Fichte Gymnasium in Krefeld, Germany and currently serves as the school's retreat center.

Source: Wikipedia