Scooby-Doo, Where Are You! Season 3 Episode 13
The gang visit their friend, Antonio, in Venice, Italy, and find that he’s haunted by the ghost of an ancestor, the Ghostly Gondolier, who seeks to steal the ancient necklace/family heirloom Antonio wears!
Serie: Scooby-Doo, Where Are You!
Episode Title: A Menace in Venice
Air Date: 1978-12-02