During the course of restoration, various architectural features and archaeological remains were unearthed. A small structure consisting of two sets of stones in circular arrangements was discovered in Cathedral Square in December 2014. Its age and purpose are unknown. Bronze Age silos were also rediscovered. Parts of the Hospitaller fortifications which had been obscured by British interventions in the mid-19th century were also rediscovered during the restoration works. These include a ramp with a drawbridge which served as the original entrance to the fortress, and a sally port within a flank of St. Michael's Bastion. The archaeological discoveries were incorporated into the final design of the project.