Natural arch (arco naturale) at the east coast of the italian island of Capri. The arch was formed after the collapse of a cave and the later erosion of the rock.
Johannes Liebmann <a href="//commons.wikimedia.org/w/index.php?title=User:Libbi&amp;action=edit&amp;redlink=1" class="new" title="User:Libbi (page does not exist)">Libbi</a>
photo taken by Johannes Liebmann