In this paper, we deal with the presentation of the topics of the diversity, endangerment, extinction, documentation and preservation of the world's languages to the primary and secondary school students via experiential education. We present an interactive exhibition titled "Linguistic biosphere" accompanied by an escape game "The last speaker".
The exhibition and the escape game were organized by the educational platform Library of Languages for the 2019 European Day of Languages festival in Kampus Hybernská. The paper describes how the current approaches to linguistic diversity and the principles of experiential learning theory and gamification were utilized in the design of the particular components of the exhibition and the escape game.