Enna

Enna is a city and comune located roughly at the center of Sicily, southern Italy. It has earned the nicknames “belvedere” (panoramic viewpoint) and “ombelico” (navel) of Sicily. At 931m above sea level, Enna is the highest Italian province capital.
Enna is situated near the center of the island; whence the Roman writer Cicero called it Mediterranea maxime, reporting that it was within a day’s journey of the nearest point on all the three coasts. The peculiar situation of Enna is described by several ancient authors, and is indeed one of the most remarkable in Sicily.
The ancient city was placed on the level summit of a gigantic hill, so lofty as almost to deserve to be called a mountain, and surrounded on all sides with precipitous cliffs almost wholly inaccessible, except in a very few spots which are easily defended, abundantly supplied with water which gushes from the face of the rocks on all sides, and having a fine plain or table land of about 5 km in circumference on the summit, it forms one of the most remarkable natural fortresses in the world.