The most ancient and picturesque district, with its churches and old houses, can be seen from Via Garibaldi. Follow its roads, which climb the slope of the hill, and as you climb you reach the ruins of the Norman Swabian castle. Of its majesty, splendor and importance, only part of the walls and the robust tower that rests directly on the rocky cliff remain since the earthquake of 1783. However, what history has handed down to us does remain. Henry VI and the empress consort Constance of Altavilla stayed here, and here Frederick II imprisoned his son, the ‘rebel’ Henry VII. The view of the city that can be enjoyed from above is beautiful.