This is the Pulo, Molfetta's neolithic site. From the air you can clealy see how it is a round depression in the midst of an otherwise flat territory. You can also see the cave dwellings in the walls and the gunpowder factory in the center. The structure in the bottom right of the photo is the 16th century monastery.
For on-the-ground views and more information, click here, here, here , here, here and here.
Street mirror in Vilpian
4 hours ago