Castel d'Aiano is a municipality located in the province of Modena within the Emilia-Romagna region of northern Italy. It is situated in the Apennine Mountains, specifically in an area characterized by its hilly landscape and rural setting.
The town is primarily known for its historical architecture and its position within the agricultural heartland of the region. While it serves as a local residential hub, it maintains the traditional characteristics of an Italian mountain village.