On Friday, January 29, 2016, on the occasion of the fortieth edition of Arte Fiera, the art project of Andrea Benetti entitled “Signum Crucis” was inaugurated in Bologna in the ex Ospedale dei Bastardini, ex Chiesa delle Putte, consisting of an exhibition that saw the collaboration between Andrea Benetti, author of the Manifesto of Neo-Cave Art presented at the 53rd Venice Art Biennial, Prof Emeritus of the University of Bologna Msgr. Fiorenzo Facchini, Prof. Fernando Lanzi, Director of the Museum of the Blessed Virgin of San Luca and Prof. Gioia Lanzi, Deputy Director of the Museum Della Beata Vergine di San Luca.