The castle of Skaros is located at the top of the mountain that stands inside the caldera opposite Imerovigli. Once there were about 200 stone houses built there in order to protect the inhabitants from the pirates. It was the island's capital and center of the Catholic Diocese until its abandonment. When it was built it was connected with Imerovigli by a movable wooden bridge. According to the story, the Casteli of Skaros was never captured by anyone, but was abandoned in the 17th century because of the earthquakes due to the volcanic activity on the island. Today a path that is worth the walk will lead you to Skaros, where you will see only a few remains that indicate the existence of a settlement. The volcano and the caldera will amaze you. There, perched on the rocks, you will find the Panagia (Virgin Mary) Theoskepasti.