Those attending Portugal's NOS Alive can buy hotel or camping packages with tickets. Acts include Radiohead, Arcade Fire, Pixies, Foals and Tame Impala.
Melt! (Ferropolis, Germany) – Music festivals are as much a part of summer as being eaten by insects. Some of the best include Germany's Melt!, held July 15-17 in the dystopian Ferropolis industrial museum between Leipzig and Berlin.
Rock en Seine (Paris) – Iggy Pop and Sigur Ros are among the acts playing the August 26-28 event in the stunning Domaine National de Saint-Cloud in west Paris.
End of the Road (Dorset, England) – Set in the beautiful Larmer Tree Gardens in southern England, this boutique festival is considered the UK's best live music and comedy weekend.
Exit (Novi Sad, Serbia) – A welcoming vibe and late-night partying make Exit unlike any other festival. This year there are dance and pop acts including Ellie Goulding and Bastille.
Primavera Sound (Barcelona, Spain) – This three-dayer held in the city's Parc del Forum has a focus on cutting-edge alternative acts. Tickets are relatively cheap, but there's no accommodation.
Pitchfork (Chicago) – As would be expected from a website which has defined music over the past decade, Pitchfork fields some of the coolest acts out there. 2014's lineup included electronic act Grimes, pictured.
Osheaga (Montreal) – Spread over five stages at Montreal's Parc Jean-Drapeau, Osheaga is now in its 11th year, booming from a small indie event into Canada's best-loved festival.
Fuji Rock (Naeba Ski Resort, Japan) – Fuji Rock, with seven music stages in the shadows of Mount Fuji, is where Japan lets its hair down.
Roskilde (Denmark) – The lineup this year is first-rate, with New Order, PJ Harvey and LCD Soundsystem all booked.