Among them is the Crucified of Poibueno, created by Gregorio Español, an sculptor of Astorgan origin. The retable of San Bartolomé, from the late 15 C is another treasure of the museum. The extraordinary collection of smithery show the evolution of this art from the 15 C, when it was like architecture in miniature, to the 17-18 C, when the Neoclassic aesthetics established purer volumes. All of them are masterpieces.

The noble floor includes a variety of religious smitheries ; richly elaborated processional crosses, from the 16-18 C combine with beautiful incense burners, ornamented chalices and monstrances. The cross of Poibueno, created by Sebastian de Encalada and the cross of Castrotierra, whose Christ is attributed to Miguel Angel can also be found.

On this floor there are also some paintings, such as the retable of Navianos, in the throne room, attributed to Berruguete; and another from the 16 C illustrating the life and miracles of San Roman, by an anonymous artist.

The rest of the Noble floor has preserved its original structure, displaying a variety of works such as the Bishop´s Writing Desk, the throne room with the Baldachin created by Gaudi, and the private dining room.
The last floor contains an exhibit of Leonese contemporary artists: painters (Demetrio Monteserín, Petra Hernández, Argüelles...) and sculptors (Marino Amaya, Castorina, Pombo...)