In Urbania, there was a fortified complex (fortress-residence) built by the Brancaleone family and located along the Metano River. After throwing away the Brancaleone family, Federico da Montefeltro undertook restoration work of the entire building, changing it into a Ducal Palace by Francesco di Giorgio Martini. Later, the building was restored many times by Gerolamo Genga and it was the favourite seat of the last Duke of Urbino Francesco Maria II Della Rovere. Nowadays, the two rooms and the hall host the art and book collection of the Municipal Library and the Civic Art Gallery and Museum, the Municipal Archive and the history of agriculture and craft Museum.