According to Piaggia, the project of the military quarter is attributable to Camillo Camilliani and the date of the beginning of the works dates back to 1585 ca. The east wing is divided into ten rooms, communicating through a series of arched passages. The time line is divided into three large sections: pre and protohistoric, Greek and finally Roman-Byzantine.
After an introduction of a territorial and geological nature exposed in special educational panels, begins the prehistoric and protohistoric section that occupies rooms 1-5.
The antiquarium named after Domenico Ryolo is located inside a prestigious room: the east wing of the Spanish Quarter, a building that was part of the defensive system built in the 1500s to block the access that led to the Castle. Initially, the district consisted of a door incorporated into a tower (both demolished in 1930) flanked by two rectangular buildings, used as stables, on the ground floor, and as military quarters, on the first floor. More information about the Antiquarium can be found in the UNDERWATER ARCHAEOLOGY section of this website.