Passignano is a city-casle situated on a rocky promontory on the north side of lake Trasimeno on the slopes of the hill/forest system. The Fortress probably of Longobard origin from the 5th-6th century, makes up the first nucleus of the castle that was enlarged up to the bank of the lake in three distinct historical periods.
At today are remaining just the triangular tower (Clock Tower) and some long stretches of the wall. The church of St. Christopher contains a cicle of frescoes of great interest by several artists between the 11th and 14th century.
In the center of the historic city the church of St. Bernardine was built in the 1400s with its beautiful sandstone portal.
In the lower piazza is the Oratory of Blessed Sacraments. To the west of city is the Temple of our Lady of the Olive: it was consecrated before 1600 and later embellished with precious stucco-work, paintings and marble.