In response to the dynamic challenges of our world, the field of Applied Linguistics is experiencing significant shifts towards research that prioritizes praxis-oriented scholarly engagement, focusing on reflexive action to bring about transformative change. In line with these shifts, this chapter advocates for integrating Linguistic Landscapes (LLs) into education to develop competencies aligned with global citizenship, namely critical thinking and critical language awareness, intercultural competence, (global) civic responsibility and active participation. Drawing from recent and relevant literature on each of these concepts, evidence is presented from a European project on LLs in (modern) language education. This entailed analyzing empirical data from interviews and observations across five European contexts of primary and secondary education. The examples provided illustrate how pedagogical work around LLs in the language classroom can enhance the development of competencies deemed essential for global citizenship. Building on these findings, a framework for transformative change through LLs is proposed. This approach advocates for the integration of service learning to effectively bridge LLs as a pedagogical tool with global citizenship as an overarching educational goal.