The tenth-anniversary edition of Utopian Hours, Turin's festival of urban ideas, takes place on October 16 and 17, gathering architects, developers, activists and urbanists for two days of talks, masterclasses, exhibitions and roundtables at La Centrale Lavazza and the Dorado Community Hub. The guest of honour is Sir Peter Cook, the co-founder of Archigram, who joins the festival just days before his 90th birthday. In a special masterclass, Cook will reflect on nine decades of urban imagination and a practice that has persistently challenged what architecture and cities might become. Alongside the festival, Stratosferica presents The City Is a Garden, Cook's first solo exhibition in Italy, extending his lifelong exploration of architecture, landscape and speculative urban futures. Other guests include Wim Walschap, CEO and Senior Partner at Herzog & de Meuron; Zahra Ebrahim, co-founder of Toronto's Monumental; Carolyn Steel, architect and author of Sitopia; Robert Winkel of Nice Developers; and Paul Stavert of Powerhouse Company. The ideas take shape in projects already reshaping cities: Gleispool Dreispitz reimagines former railway infrastructure in Basel as a public swimming pool, while Helsinki's Crown Bridges creates a major new car-free connection for trams, cyclists and pedestrians. The programme moves freely across disciplines and scales, from placemaking and housing to mobility, urban technology and civic action. The anniversary edition completes a journey that began in May with a first chapter at Rotterdam's Groot Handelsgebouw — with Rotterdam now returning as European Guest City. Last year's edition welcomed more than 4,000 people from over 30 cities, and the organizers are betting that the appetite for bold, cross-disciplinary thinking about the urban future has only grown since the festival began as an experiment ten years ago.