Romania

No country in Eastern Europe sets summer alight quite like Romania. It all radiates from Cluj-Napoca, the Transylvanian capital turned festival epicentre of the continent: this is where Untold transforms the Cluj Arena every August into a cathedral of electronic music, all sound, lasers and after-dark liturgy for hundreds of thousands of revellers drawn from across the globe. A few kilometres away, on the grounds of Bánffy Castle in Bonțida, Electric Castle weds 15th-century walls to digital art and a chameleon lineup — rock, hip-hop, drum & bass, indie — in one of the most photogenic settings on the European circuit.

But Romania's electronic soul also beats along the Black Sea. On the sands of Mamaia, Sunwaves Fest has grown into a legend for lovers of techno and minimal house, a rite of passage where sets stretch past dawn and far beyond, while the Untold galaxy drops anchor in Bucharest with Neversea Kapital at the Arena Națională. The country knows how to hit hard, too: tucked beneath Râșnov Citadel, Rockstadt Extreme Fest has become Eastern Europe's biggest metal gathering, while Cluj nurtures a mellower side with Jazz in the Park. FestT works out your FestiScore — the affinity between a lineup and your favourite artists — and keeps dates, headliners and ticketing up to date.