The article presents an interdisciplinary approach to the Bulgarian Revival architecture - on the one hand there are architectural norms in historical terms, and on the other the practices of digitalization, modern technologies (artificial intelligence, intelligent agents, ontologies). Their intersection is the preservation of cultural, historical and architectural heritage, and at the same time respect for the individual interests of tourists.

This article introduces an ontology of a Bulgarian Dance Folklore. There are a lot of specific performances (popular in Bulgaria as ‘horá ’), but our experimental focus is on some Professor Dzhenev’s works. An ontology classifying traditional dances according to several characteristics will be considered.

The goal of the article is to present one of a total of seven ontologies in the project for the Semantic Modelling of the Bulgarian Pre- and Revival houses. The ontological representation of historical and contemporary figures and organizations concerning the residential revival architecture will be considered.

The purpose of the proposed article is to present the creation of ontologies for automatic generation of test questions from the Test Generation Environment, which was created as part of the Virtual Education Space. The ontologies presented in the article are in different fields and can be helpful to students in their exams or for self-study. The three ontologies are in the fields of botany, literature and history of Bulgaria, and architecture of Revival houses. The article presents examples of automatically generated questions for each of them.

In the article, we will explain the concept of alternative tourism and its subtypes, we will dwell on its role in the preservation of cultural and historical heritage of an architectural type by means of technological solutions – an intelligent guide with ontological knowledge.

The article presents the development of an ontology for the Taxonomic List of Soils in Bulgaria (according to the FAO World System). In addition to soil types, the ontology includes knowledge about the different agro-climatic regions in Bulgaria that are suitable for cultivating various agricultural crops. The ontology is part of the knowledge base of the ZEMELA platform for smart agriculture.