The Green Line Festival, formerly known as “F-Light,” is a month-long event that illuminates Florence’s monuments and squares. Held in over 15 locations, it features video mapping, projections, light games, art installations, educational activities, and meetings. The latest edition ran from 8 December 2021 to 9 January 2022, filling Florence with luminous displays and artistic installations. The event is a significant European reference point. The most recent edition took place from 8 December 2023 to 7 January 2024.