The preservation and dissemination of knowledge about cultural, historical, and natural sites in Bulgaria is extremely important. In this regard, the Faculty of Mathematics and Informatics of Plovdiv University is developing a project related to the implementation of an intelligent tourist guide, which, according to the tourist’s criteria, generates virtual or real tourist routes. The article will present part of the knowledge base of the tourist guide, namely an ontology that describes the richness of Bulgarian literature. The structure of the ontology, the basic axioms, and dependencies between the basic concepts, as well as the identities of the individual concepts in the ontology are presented. Keywords: Ontology; Bulgarian Literature; Intelligent Tourist Guide