> All the pictures are the result of a mapping project about the underground sites of the city of Perugia which participated in the 15° Conferenza Italiana Utenti ESRI in 2014 entitled: “DISCOVERING THE INVISIBLE CITY. An unprecedented journey through the "Perugia underground".

This is the story of a fascinating journey that will lead us to discover the historical roots hidden beneath the streets of the city of Perugia, every day theater in which our daily activities take place.

- Top left: Hypogeum of St. Manno (III century Ac) - The monumental etruscan architecture expresses here in all its attactive strength
- Top right: Archaeologic area of St. Bevignate - Factories of ancient crafts are hidden under the floor of the Templar church
- Bottom left: Terracing of the Etruscan acropolis, archaeological area of St. Lorenzo - The Etruscan foundation supports the Cathedral
- Bottom right: Maestà delle Volte Street - The collapse of the ancient vaults invades the passer-by with light

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