Colli al Metauro is a municipality with a population of 12,452 inhabitants in the province of Pesaro and Urbino; it was established on 1 January 2017 and includes the former municipalities of Montemaggiore al Metauro, Saltara and Serrungarina. Saltara retains the original medieval form, with its ancient walls. Near the village stands the elegant church sanctuary of the Madonna della Villa, which houses a fine recently restored antique organ. Further west is the monumental church of San Francesco in Rovereto (sec. XV) with the adjacent convent, now used for spiritual retreats and cultural meetings. On a hill to the north is the so-called Villa del Bali, a large country residence built by the noble family Negusanti (sec. XVI) and lated purchased by Counts Marcolini, who held the hereditary title of the military order of chivalry Bailiff of St. Stephen. The Villa now houses the Museum of Balì, an interactive science museum, boasting a planetarium, an observatory and equipped classrooms.
Serrungarina  is little town perched high on a hillside. Inside the city walls, on the site of a former fortress, is now the parish church of St.Antonio Abate, built in 1665 and rebuilt in 1867. Not far from Serrungarina are also the ancients 'castles' of Bargni and Pozzuolo.
Montemaggiore al Metauro is an ancient walled town, that dominates the right side of the lower Metauro valley. A former possession of the Benedictine abbey of St. Paterniano, Montemaggiore al Metauro was one of the defensive bastions under the Lords Malatesta against the land ruled by the Montefeltro; in 1462 Federico da Montefeltro finally defeated Sigismondo Malatesta. In 1944 there was the struggle between the retreating German troops and the allied ones along the so-called Gothic Line. The former church of Santa Maria del Soccorso now houses the Historical Museum of the Metauro river "Winston Churchill". It boasts abundant historic relics of World War II, such as diaries, military weapons, uniforms, badges, model war, official documents and memorabilia. The museum brings back the day  - August 25, 1944, when British prime minister Winston Churchill headed towards Montemaggiore al Metauro with General Alexander (Commander  of VIII Corps of the British fleet) in order to watch the deployed troops in the Metauro valley.