The semicircular fortification line surrounding Komárno was built in the 19th century. There is the Roman Lapidary awaiting its visitors from 1993 in the south rondella of the rebuilt Bastion VI . Most of the carved stone monuments date back to the 2 – 4 century AD and comes from the two fortifications protecting the one - time border of the Roman Empire. Both fortifications, Brigetio and Celemantia Camp, were situated near Komárno opposite to each other on the two banks of the River Danube. There can be seen the copies of the most important Roman stone monuments of Slovakia in a separate hall.
