Pretty town in a wonderful position on a hill to the left of the Verrino river, surrounded by green woods.
There are remains of a pre-Roman settlement (walls below the hill). In the Middle Ages it was a flourishing crafstwork center, renowned especially for bell-making, the Fonderia Pontificia Marinelli made bronze bells to be shipped all over Europe. Also goldsmiths and watch makers were especially renowned.
Among its many feudal Lords were the Di Capua, Colonna, Gonzaga, D'Aquino and Caracciolo families. Especially lively is the "Carnevale Agnonese" and on Christmas Eve the beautiful parade of the "n'docce", wooden torches made in the nine different quarters ("borgate") accompanied by the sound of bagpipes, to the Piazza Plebiscito where a brotherhood bonfire is lit.