In recent years, European University Alliances have emerged as a key strategy to enhance collaboration, mobility, and innovation within higher education across the continent. These alliances bring together universities from different countries, fostering partnerships that aim to address common challenges, promote academic excellence, and provide students with enriched educational experiences. Through the adoption of Open Science practices, such as sharing research findings, methodologies, and data openly, the Alliances foster a culture of scientific integrity and knowledge exchange. This article explores the benefit of using Open Data to let high-school learners familiarize themselves with the Alliances in terms of objectives, benefits, challenges, and their role in shaping the future of higher education in Europe.