The diploma thesis deals with possibilities of revitalisation and modernising historic fortress at the confluence of the rivers Danube and Váh. The Komárno Fortress is on the waiting list of the World Heritage. Due to the historic surroundings it was proposed to involve underground architecture. The main goal of the thesis was to design place that is modern and full of life. The final form of the thesis is architectural study. The complex of buildings is trying to make simple yet enriching architecture full of recreational and educational places while respecting historic nature of the genius loci. The building is also representing modern institution which university most certainly is.