TOPIO is a European project that promotes sustainable landscape protection, management, and planning by combining Citizen Science, Geoinformatics (EO & GIS), and Artificial Intelligence. It will develop a Thematic Platform, an interactive and continuously updated tool for landscape monitoring and management, alongside new digital methodologies. The project fosters international, interdisciplinary, and cross-sectoral training for researchers and applies landscape character assessment across seven European countries. By exchanging knowledge on policies and public participation, TOPIO strengthens the socio-cultural and environmental dimensions of sustainable development. The results will be synthesized for awareness raising, policy negotiations, and stakeholder dialogue, providing actionable recommendations for decision-makers.