forty professional orchestras, including the Orquestra Simfònica de Barcelona, Orquesta Nacional de España and the Orquesta Sinfónica de Madrid. Major opera houses include the Teatro Real, the Gran Teatre del Liceu, Teatro Arriaga and the El Palau de les Arts Reina Sofía. Thousands of music fans also travel to Spain each year for internationally recognised summer music festivals Sónar which often features the top up and coming pop and techno acts, and Benicàssim which tends to feature alternative rock and dance acts. Both festivals mark Spain as an international music presence and reflect the tastes of young people in the country. Vitoria-Gasteiz jazz festival is one of the main ones in its genre. The most popular traditional musical instrument, the guitar, originated in Spain. Typical of the north are the traditional bag pipers or gaiteros, mainly in Asturias and Galicia. Cuisine Spanish cuisine consists of a great variety of dishes which stem from differences in geography, culture and climate. It is heavily influenced by seafood available from the waters that surround the country, and reflects the country's deep Mediterranean roots. Spain's extensive history with many cultural influences has led to a unique cuisine. In particular, three main divisions are easily identified:Mediterranean Spain – all such coastal regions, from Catalonia to Andalusia – heavy use of seafood, such as pescaíto frito (fried fish); several cold soups like gazpacho; and many rice-based dishes like paella from Valencia and arròs negre (black rice) from Catalonia.Inner Spain – Castile – hot, thick soups such as the bread and garlic-based Castilian soup, along with substantial stews such as cocido madrileño. Food is traditionally conserved by salting, such as Spanish ham, or immersed in olive oil, such as Manchego cheese.Atlantic''' Spain – the whole Northern coast, including Asturian, Basque, Cantabrian and Galician cuisine – vegetable and fish-based stews like caldo gallego and marmitako. Also, the lightly cured lacón ham. The best known cuisine of the northern countries often rely on ocean seafood, as in the Basque-style cod, albacore or anchovy or the Galician octopus-based polbo á feira and shellfish dishes. Sport While varieties of football have been played in Spain as far back as Roman times, sport in Spain has been dominated by football since the early 20th century. Real Madrid CF and FC Barcelona are two of the most successful football clubs in the world. The country's national football team won the UEFA European Championship