Heritage Open Day: The Culture Trust Luton has commissioned acclaimed local artist Abu Yahya to create a new series of large-scale calligraphy works in the Hat District, as part of Heritage Open Days 2025. The works will unfold live across the week. The Culture Trust Luton has commissioned acclaimed local artist Abu Yahya to create a new series of large-scale calligraphy works in the Hat District, as part of Heritage Open Days 2025. The works will unfold live across the week of 12 – 21 September, drawing visitors' attention to the historic fabric of Luton’s former Hat Factories.