Umbria
Umbria (ˈʌmbriə , ˈumbrja) is a region of central Italy. It includes Lake Trasimeno and Marmore Falls, and is crossed by the River Tiber. It is the only landlocked region on the Apennine Peninsula. The regional capital is Perugia. The region is characterized by hills, mountains, valleys and historical towns such as the university centre of Perugia, Assisi (a World Heritage Site associated with St. Francis of Assisi), Terni, Norcia, Città di Castello, Gubbio, Spoleto, Orvieto, Todi, Castiglione del Lago, Narni, Amelia, Spello and other small cities. Umbria is bordered by Tuscany to the west and the north, Marche to the east and Lazio to the south. Partly hilly and mountainous, and partly flat and fertile owing to the valley of the Tiber, its topography includes part of the central Apennines, with the highest point in the region at Monte Vettore on the border of the Marche, at ; the lowest point is Attigliano, . It is the only Italian region having neither a coastline nor a common border with other countries. The comune of Città di Castello has an exclave named Monte Ruperto within Marche. Contained within Umbria is the hamlet of Cospaia, which was a tiny republic from 1440 to 1826, created by accident. Umbria is crossed by two valleys: the Umbrian valley ("Valle Umbra"), stretching from Perugia to Spoleto, and the Tiber Valley ("Val Tiberina"), north and west of the first one, from Città di Castello to the border with Lazio. The Tiber River forms the approximate border with Lazio, although its source is just over the Tuscan border. The Tiber's three principal tributaries flow southward through Umbria. The Chiascio basin is relatively uninhabited as far as Bastia Umbra. About farther on, it joins the Tiber at Torgiano. The Topino, cleaving the Apennines with passes that the Via Flaminia and successor roads follow, makes a sharp turn at Foligno to flow NW for a few kilometres before joining the Chiascio below Bettona. The third river is the Nera, flowing into the Tiber further south, at Terni; its valley is called the Valnerina.