Prigioni Vecchie is a historical site located in Venice, Italy. It served as a prison from the 16th century until the 19th century, housing various inmates, including political prisoners. The building is known for its distinctive architecture and its role in the Venetian justice system. Today, Prigioni Vecchie is part of the Palazzo Ducale complex and attracts visitors interested in the history of crime and punishment in Venice. The site offers insights into the lives of those who were imprisoned there and the conditions they faced during their confinement.