alcohol level of 10.5% for still and 11% for the spumante style. The primary grape variety of the region is the Asprinio which must constitute at least 85% of the wines, with other local white grape varieties, such as Fiano, Trebbiano and Greco permitted to fill in the remainder. Viticulture in Aversa is unique for its use of growing the grapevines with poplar trees acting as trellises. This traditional method of trellising means that almost all harvesting is done by hand. Main sights Aversa, the second in historic importance of the dioceses of Campania, is the "city of a hundred churches" in its extensive historic center. Among its monuments: The Romanesque Duomo, dedicated to Saint Paul, has a spectacular ambulatory and a majestic octagonal dome. Francesco Solimena's Madonna of the Gonfaloneand the Quattrocento painter Angiolillo Arcuccio's Martyrdom of St Sebastian are in the Duomo. The pre-Romanesque sculpture of St George and the Dragon is one of the few surviving free-standing sculptures of its date. An outstanding collection of Baroque liturgical silver is kept in the Treasury. The Baroque Church of San Francesco delle Monache. The Ospedale Psichiatrico Santa Maria Maddalena founded by Joachim Murat in 1813 which was the oldest Judicial Psychiatric Hospital in Italy and the center of many accusations of abuse. The Real Casa dell'Annunziata. The Benedictine Abbey of San Lorenzo, founded in the 10th century, with a fine Renaissance cloister. The Church of Santa Maria a Piazza, founded in the 10th century, has frescoes of the school of Giotto. Other churches in the city conserve paintings by Guido da Siena, Polidoro da Caravaggio, Marco Pino da Siena, Pietro da Cortona, Pietro Negroni il Giovane Zingaro, Giuseppe Ribera, Cornelius Smeet, Abram Vink, Teodoro d'Errico, Francesco de Mura, Massimo Stanzione, and Paolo de Maio. The Historic Former Railway station (Stazione Ferrovia Napoli Piedimonte D'Alife) of a long closed 1913 railway The Historic Aragonese Castle which now houses the Italian Penitentiary Police (Italy's Correction Officers) training facility Transportation Aversa railway station is a major station on the Rome–Formia–Naples railway. Most of the traffic is operated by Trenitalia, although some trains run under the aegis of MetroCampania NordEst (successor to the former Ferrovia Alifana). Aversa is served by a suburban train, on the Naples–Aversa railway, that connects its stations (Aversa Centro and Aversa Ippodromo) with Piscinola, northern Naples, on the Line 1 of Naples Metro. The nearest airport is that of