One of the best starting points for a journey of discovery is the old Kastel Fortress, which is also one of the oldest buildings in the city. This beautiful fortress is located on the left bank of the Vrbas River and is one of the most important buildings in Banja Luka.
Its exact age has not yet been determined. However, it is believed that the settlement of Kastra was already located here in Roman times. Its expansion into a heavily fortified fortress with defensive towers began in the 15th century under Ferhat Pasa Sokolovic.
After the Ottomans, the Austrians took over the fortress, and during World War II, it was even used by the German Wehrmacht. The fortress complex is located on a vast site that, in addition to the bastions and defensive towers, includes a large park and a restaurant.
In summer, the Kastel is a popular destination for relaxing or picnicking in the beautiful surroundings of the Vrbas River. Numerous festivals and events also take place here during the summer months.