Foligno, (Latin: Fulginiae, Fulginium) is an ancient town of Italy in the province of Perugia in east central Umbria, on the Topino river where it leaves the Apennines and enters the wide plain of the Clitunno river system. It is located 40 km (25 mi) south-east of Perugia, 10 km (6 mi) north-north-west of Trevi and 6 km (4 mi) south of Spello. Foligno is a station on the main line from Rome to Ancona, and is the junction for Perugia; it is thus an important rail center, with repair and maintenance yards for the trains of central Italy, and was therefore subjected to severe Allied aerial bombing in World War II, responsible for its relatively modern aspect, although it retains some medieval monuments. Of its Roman past no significant trace remains, with the exception of the regular street plan of the centre. Other resources include sugar refineries and metallurgical, textile, building materials and paper and timber industries. After the war, the city's position in the plain and again its railroad connections have led to a considerable suburban spread with the attendant problems of traffic and air pollution, as well as a severe encroachment on the Umbrian wetlands. Foligno is on an important interchange road junction in central Italy and 2 km far from the centre of the city there is the Foligno Airport.