There was only one way up from the lower town to the main castle. This gate was known as “The Iron Gate” (Sideroporta) and was set at an oblique angle to the line of the walls. A square tower flanks the entrance on the left and a narrow tapering tower on the right conceals the gate from below. The door itself survives in good condition and consists of wooden planks covered in iron panels that are held in place with big iron nails. Surprisingly the door still works. The wall on the right is a revetment to the steep slope so the north side is very close to ground level. Through the gate the lane leads to the clock tower that was built in 1914. As you go through the gate notice the box machinolation. It is adorned with horns of plenty and flowers but the gaps in the underside were placed there to allow the defenders to drop boiling oil or lead on any attackers.