We invite you to the adventure of visiting the Austro-Hungarian fortresses, the remnants of the defense system of the southern border of the empire. At the end of the 19th and the beginning of the 20th century, this was one of the strongest and largest defense systems in Europe. It amazes many connoisseurs with its brilliant strategic and tactical set up. On five thematic routes, you will discover the secrets of this system and the magic of abandoned fortifications.