Castel S. Pietro rises on the top of Monte Ziolina, surrounded by a shady pine forest.
Image gallery: Castel San Pietro
Castel San Pietro owes its great strategic importance during the Middle Ages to prehistory. As a castle from the Stone Age and the following Bronze and Iron Age, Castel S. Pietro was the archaeological site of objects made of stone, ceramics, Roman coins and also a small statue of Apollo.
Today the ruin consists of only two parts of the wall, which was built box-shaped with angular stones. Here and there you can see some remains of beams. The castle was also called “Tre Corni”.