The Lagopesole Castle is located on the hill overlooking the valley of Vitalba. Hunting lodge and summer "otium" erected by Emperor Frederick II in 1242. The reference to the Lagopesole domus in the Statutum de reparation castrorum in the early forties of the thirteenth century testifies with certainty the viability of a large part of the building before the death of the emperor. The Angevins complete the building by restoring the roofing and providing it with an aqueduct, stables and a small lake in front of which eels were bred, fished in the Versentino and Salpi lakes. It consists of two buildings: one purely residential and the other military, likely Norman foundation. The external wall face is characterized by the massive compactness of the rusticated surface, interrupted by the entrance located on the western slope and protected by two symmetrical projections. Inside, the spaces are marked by two courtyards; the residential areas are gathered on two levels and on three sides around the main one, in the northern part of the building. In the western hall of the upper floor you can still admire the refined sculptures of the capitals and the supporting shelves of the original roofs.