Po (river) 70,000 in Italy, of which 41,000 is in montane environments and 29,000 on the plain. The Po is the longest river in Italy; at its widest point its width is . The Po extends along the 45th parallel north. The river flows through many important Italian cities, including Turin (Torino), Piacenza and Ferrara. It is connected to Milan through a net of channels called "navigli", which Leonardo da Vinci helped design. Near the end of its course, it creates a wide delta (with hundreds of small channels and five main ones, called "Po di Maestra", "Po della Pila", "Po delle
Italy 251,192 Jehovah's Witnesses, 30,000 Waldensians, 25,000 Seventh-day Adventists, 26,925 Latter-day Saints, 15,000 Baptists (plus some 5,000 Free Baptists), 7,000 Lutherans, 4,000 Methodists (affiliated with the Waldensian Church). One of the longest-established minority religious faiths in Italy is Judaism, Jews having been present in Ancient Rome since before the birth of Christ. Italy has for centuries welcomed Jews expelled from other countries, notably Spain. However, as a result of the Holocaust, about 20% of Italian Jews lost their lives. This, together with the emigration that preceded and followed World War II, has left only around 28,400 Jews in Italy. Soaring immigration