17 March 2019, Poland, Walbrzych: Piotr Koper, a building contractor, stands in the ballroom of the Palac Struga (Adelsbach Castle), pointing to exposed centuries-old paintings of Bohemian and Roman-German rulers. During the reconstruction of the castle, the workers discovered the unusual Renaissance murals of rulers of different eras behind several layers of plaster and paint. (to dpa "Polish gold train hunter encounters unexpected treasure") Photo: Gregor Fischer/dpa