Banja Luka is the big city of northwestern Bosnia: the country's second city, capital of Republika Srpska, young, green and full of students. It doesn't have the spectacular old town of Mostar or the historical weight of Sarajevo, but it does have a relaxed, pleasant atmosphere, with long chestnut-lined avenues, parks along the Vrbas, terraces full of people and a nightlife livened up by its students.
Its great hallmark is the river. The Vrbas runs through the city and, upstream, forms a spectacular canyon that is one of the best rafting and adventure sports destinations in the Balkans, and has hosted world championships. On the riverbank, in the centre, stands Kastel fortress, with Roman roots, a historic park where concerts and festivals are held.
Banja Luka is also a good example of contemporary Bosnia and its wounds: this is home to the Ferhadija, one of the most beautiful Ottoman mosques in the country, dynamited in the war of the 90s and rebuilt stone by stone, reopened in 2016. This guide tells you what to see, how much things cost, how to get there from Zagreb or Sarajevo and how to make the most of the river, the city's true star.
The site of Banja Luka was Roman (the castrum of Castra, at Kastel fortress). The Ottomans made it an important provincial centre in the 16th century —governor Ferhad-paša Sokolović had the beautiful Ferhadija mosque built in 1579— and for a time it was the capital of Ottoman Bosnia. It passed to Austro-Hungarian rule in 1878 and grew into a modern city. In 1969 an earthquake devastated it and it was rebuilt. The war of the 90s left a deep mark on the city, with the destruction of its mosques (later rebuilt) and its transformation into the centre of Republika Srpska. The full story —Rome, the Ottomans, Ferhad-paša, the Austrians, the earthquake and the war— is on our history page.
Read the full history ↓Cities of kings, viziers and partisans: Jajce and its royal castle, Travnik, birthplace of a Nobel laureate, and Banja Luka, capital of Republika Srpska.
Read the history of The west and north (Jajce, Travnik, Banja Luka) →Some places make no sense on your own; with someone explaining them, they change completely. We look ours up on Civitatis: guided in Spanish and booked online with no fuss. They have 6 activities in Sarajevo. And there are free tours here: you book without paying and tip the guide whatever you think at the end, so trying one costs you nothing. Have a look below: tap any of them to see them all.
They depart from Sarajevo, 128 km away. If you book from this link we earn a commission and you pay no more.
No exact prices: a scale from $ (budget) to $$$$$ (luxury), with 2-3 options per category.
Origins, formation and what the sources say.
The story of Banja Luka begins, like that of so many European cities, with a Roman legion looking for a good spot to keep watch over a river. On the site where the Kastel fortress stands today, on the banks of the Vrbas, the Romans set up a military camp (castrum) called Castra, on the route linking the Dalmatian coast with the interior of the province of Pannonia. The fortress's name, Kastel, is a direct echo of that Latin origin.
The Vrbas valley was fertile and strategic: it offered plenty of water, farmland and a natural pass between the mountains. The Romans also made use of the area's thermal springs (the baths, or 'banja', which together with the Slavic word 'luka', a meadow or valley by a river, give the city its name according to popular etymology). After the fall of Rome and the Slavic migrations, the site stayed inhabited, though for centuries only as a minor settlement.
In the Middle Ages, the region was part of the Bosnian and Hungarian world, with fortresses and lordships fighting for control of the valley. But Banja Luka as a city of any importance did not yet exist: it would take the arrival of a new empire, the Ottoman one, for this corner of north-western Bosnia to become a provincial capital and one of the jewels of Islamic architecture in the Balkans.
With the Ottoman conquest of Bosnia in the 15th and 16th centuries, Banja Luka began to grow. Its great moment came at the end of the 16th century, when the governor Ferhad-paša Sokolović —a relative of the famous grand vizier Mehmed-paša Sokolović— chose it as his seat and endowed it with splendid architecture. For a time, between the late 16th and early 17th centuries, Banja Luka was even the capital of the province (first a sanjak, later an eyalet) of Bosnia, the centre of Ottoman power in the region.
The city's jewel dates from that golden age: the Ferhadija mosque (Ferhat-pašina džamija), built in 1579 on the orders of Ferhad-paša. According to tradition, it was paid for with the ransom for an Austrian nobleman captured in battle. With its elegant dome, its minaret and its decoration, the Ferhadija became one of the most beautiful mosques in Bosnia and the symbol of the city for more than four centuries. Around it grew the bazaar (čaršija), hammams, fountains, madrasas and türbes (mausoleums), making up a prosperous Ottoman city.
During the Ottoman period, Banja Luka was an important commercial and military centre in the north-west, on the border with the Habsburg lands. It lived through wars, sieges and truces on that hot frontier between empires, and its Kastel fortress was rebuilt and enlarged to suit the new age of artillery.
In 1878, with the end of Ottoman rule and the start of Austro-Hungarian administration over Bosnia and Herzegovina, Banja Luka moved into the Central European orbit. The Habsburg Empire reshaped the city in the style of Vienna and Budapest: it laid out new streets and avenues, planted the chestnut and linden trees that still give it its reputation as a green city, and put up administrative buildings, schools, barracks, a cathedral and railway stations.
The city grew and modernised, taking on much of its current look of wide tree-lined avenues and turn-of-the-century architecture. Ottoman mosques, Orthodox and Catholic churches and Austro-Hungarian buildings standing side by side reflected the multi-ethnic character of Bosnia at the time, with Serbs, Bosnian Muslims, Croats and a Jewish community.
After the First World War and the end of the Austro-Hungarian Empire, Banja Luka became part of the Kingdom of Serbs, Croats and Slovenes, later Yugoslavia. For a time it was the capital of one of the kingdom's large administrative divisions (the Vrbas Banovina), which strengthened its role as the regional capital of the north-west, with new monumental buildings such as the Banski dvor, seat of the governor (ban).
The Second World War was extremely harsh in the region: Banja Luka came under the Independent State of Croatia, and the whole area was the scene of the brutal war between Ustaše, Chetniks and Partisans, with massacres and reprisals that scarred its communities. The city's Orthodox cathedral, among other buildings, was destroyed in those years.
After 1945, Banja Luka was part of Tito's socialist Yugoslavia, within the Republic of Bosnia and Herzegovina, and went through a period of industrialisation and growth. But on 26 and 27 October 1969 the city suffered a natural disaster: a strong earthquake (of magnitude close to 6) devastated much of Banja Luka, damaging or destroying thousands of buildings and leaving tens of thousands of people homeless. The rebuilding, with help from all over Yugoslavia and abroad, transformed the city once again, with new modern, earthquake-resistant architecture.
The rebuilt Banja Luka of the 1970s and 80s was a modern Yugoslav city, industrial and with a university, the University of Banja Luka, founded in 1975. Its communities lived together, not without tension, within the Yugoslav framework. All of that would be blown apart when Yugoslavia collapsed.
The break-up of Yugoslavia and the Bosnian War (1992-1995) changed the face of Banja Luka forever. Although the city did not see front-line fighting, it came under the control of Bosnian Serb forces and became a centre of the self-proclaimed Republika Srpska. During the war, the non-Serb population —Bosnian Muslims and Croats— suffered persecution, expulsions and the destruction of their heritage: in 1993 every mosque in the city was dynamited, including the Ottoman jewel Ferhadija, in one of the most symbolic episodes of the conflict's cultural destruction.
After the Dayton Agreement (1995), which ended the war, Banja Luka became the de facto capital of Republika Srpska, one of the two entities that make up post-war Bosnia and Herzegovina. The city set about rebuilding, including its mosques: the Ferhadija was raised again stone by stone, reusing original fragments that had been salvaged, and reopened in 2016 as a powerful symbol of memory and reconciliation.
Today's Banja Luka is a young, green and lively city, the second largest in the country and the administrative capital of Republika Srpska. It lives on administration, the university, trade and, more and more, on active tourism linked to the Vrbas canyon. Travellers find a relaxed city of tree-lined avenues, terraces that are always full, a Roman fortress turned festival venue and a river that is both its history and its main attraction. Like all of Bosnia, it carries the recent wounds of the war, visible in the memory of its rebuilt buildings; but it also shows one of the brightest, most everyday faces of the country, that of a city that lives facing its river and in the shade of its chestnut trees.
