This special 2018 commemorative souvenir sheet was issued by Correos Spain as part of the Patrimonio Artístico (Artistic Heritage) series, celebrating the architectural and cultural heritage of Cuenca. The design highlights Calle Alfonso VIII and its distinctive row of colorful historic façades, one of the city’s characteristic visual features. Presented in an innovative foldable, pop-up streetscape format, the sheet transforms the traditional miniature sheet into a three-dimensional representation of Cuenca’s historic urban landscape. This creative format combines philately, architecture, and Spanish cultural heritage in a distinctive collectible.