The ensemble of the Jesuit monastery and collegium from the church and adjacent educational buildings is located in the center of Kremenets and is the main architectural symbol and tourist attraction of the city. The monastery complex in the late Baroque style was built in 1731-1753 at the expense of the Vyshnevetsky brothers and the local nobility. At the monastery there was a collegium that trained teachers for Jesuit schools. In 1773, the Jesuit order was abolished, the monks were expelled from the city, the church became the Transfiguration Cathedral, and the collegium became a secular school - first a gymnasium, then a lyceum - a higher school with a term of study of 10 years.
A botanical garden was founded at the lyceum, a library with more than 34,000 books, an astronomical observatory and a meteorological station were created - Kremenets began to be called "Volyn Athens". In 1832, after the suppression of the Polish uprising, the Kremenets Lyceum was closed, its library funds and teaching staff became the basis for the creation of Kyiv University. Currently, the building of the former collegium houses the Kremenets Regional Humanitarian and Pedagogical Academy named after I. T. Shevchenko.