Enormous ancient quarries of island Favignana First part

There are an incredible number of quarries along the entire coastline of the island Favignana ( near Sicily ) some of them are literally huge. There are giant underground tunnels, traces of processing stone blocks, and so on. The area of these quarries is huge, their height and depth are very large. This is the first part of this video, and soon there will be a second part of the video - showing other ancient Enormous quarries of this island ! First part here Second part here