The twin municipalities of Romans d'Isonzo and Sempeter-Vrtojba are collaborating to boost historical and cultural tourism in the run-up to GO!2025 European Capital of Culture. Romans d'Isonzo is focusing on the enhancement of a Lombard necropolis with the goal of creating a dedicated museum. Sempeter-Vrtojba, located on the border line, focuses on evidence of the "iron curtain" and guard posts of the former Yugoslavia. The project "HISTORY'S GAZE ON THE BORDER" aims to protect and promote cross-border historical heritage by enhancing museum spaces and conducting education and outreach activities.