Arignano has over 1,000 inhabitants and is located 23 km from Turin. Its origins date back to the year 1000, and it was subject to Chieri until the 18th century, with various feudal families.
Places of Interest
The Rocca or Upper Castle (rebuilt in the 13th century) that retains part of the keep, a square tower, and the Villa dei Costa (18th century), rich in frescoes. The Lower Castle (15th century), recently restored and surrounded by a park.
The Baroque Church of the Assumption (1781), with a central nave and two side chapels.
Lake of Arignano
An artificial reservoir of about 0.3 km2 on the border between the municipalities of Arignano and Marentino, representing the largest body of water in the Turin hills. Constructed by Count Paolo Remigio Costa starting in 1840 as a basin for collecting water for irrigating surrounding crops, producing ice during winter, as a fishing reserve, and supplying water to the two mills downstream from the dam. The lake is fed by several small streams flowing from the hilly area. Near the western shore, the Costa counts created an islet where several large trees now grow. Currently, Lake Arignano is essentially a notable wetland area that hosts resident and migratory birdlife. Besides numerous bird species, the basin and its shores provide an important habitat for reptiles, amphibians, and insects typical of wetlands, such as dragonflies.