What is it?

Niš is Serbia's third-largest city and one of the oldest continuously inhabited places in Europe, a raw, unpolished, endlessly likeable town where 2,000 years of history sit casually beside a bar terrace. Emperor Constantine the Great — the man who made Christianity the faith of an empire — was born here in 272 AD, and you can still walk the mosaic floors of his suburban villa at Mediana. The Ottoman-era fortress on the Nišava river now functions as the city's living room: locals stroll under its stone gates, kids chase pigeons, and in summer the ramparts fill with jazz. Then there is Ćele Kula, the Skull Tower, built by Ottoman forces from the skulls of Serbian rebels in 1809 — a genuinely chilling monument that says more about Balkan history than any museum label. Above all, Niš smells of smoke and grilled meat: the pedestrian heart of the city, Kazandžijsko Sokače (Tinkers' Alley), is a cobbled lane of kafanas where pljeskavica sizzles, rakija flows and someone always starts singing.

Where is it?

Niš sits in southern Serbia on the Nišava river, about 240 km southeast of Belgrade at the ancient crossroads of the Via Militaris — the route linking Central Europe to Constantinople. Key sights cluster within walking distance: the Fortress, Tinkers' Alley, Ćele Kula and the sobering Red Cross Concentration Camp memorial, with Mediana and the spa town of Niška Banja a short bus ride east. Come in late spring or early autumn for warm, comfortable weather, or in August for the Nišville Jazz Festival, when the fortress becomes an open-air stage under the stars.

What makes it worth it?

Niš is the antidote to the polished European city break — nobody comes here for Instagram, and that is exactly the point. Visitors consistently describe it as the friendliest place in Serbia, where a coffee with a stranger turns into an afternoon and a dinner bill for a feast of meat, salad and homemade rakija arrives for less than the price of a cocktail in Vienna. The emotional range of a single day here is extraordinary: you can stand before a tower of human skulls in the morning, tour a wartime concentration camp at midday, and be dancing to a brass band by midnight. That collision of tragedy and joie de vivre is what people remember years later — the sense of a city that has been burned, conquered and rebuilt countless times and still insists on having a good time. "I came for one night and stayed four" is the most common review Niš gets, and it is usually true.

How accessible is it?

Very easy and very affordable. Niš Constantine the Great Airport has budget flights from several European cities, and frequent buses and trains connect from Belgrade in around three to four hours (roughly €10–15); the drive on the A1 motorway takes under three hours. Serbia is visa-free for most Western passport holders for stays up to 90 days, and the currency is the Serbian dinar, with cash still king in smaller kafanas. Budget travellers can manage on €30–40 a day including a hostel bed, while a comfortable trip with a central hotel, restaurant meals and taxis runs €60–90 a day. All the main sights are walkable or a short bus ride apart, entry fees are typically €1–3, and no booking is needed except during the Nišville Jazz Festival in August, when accommodation fills fast. English is widely spoken by younger locals, though a few words of Serbian will earn you enormous goodwill — and probably a free rakija.