Valencia is a city of contrasts. It is one of the most important economic centres in Spain, and yet it also has a rich cultural heritage. The city is home to a large student population, and there is always something going on, whether it is a concert, a festival or a demonstration. Valencia is also a great place to eat, with a wide variety of restaurants serving both traditional Spanish food and international cuisine. The city is well known for its paella, which is a rice dish cooked with seafood, meat or vegetables. Valencia is a beautiful city, with a mix of old and new architecture. The city centre is a UNESCO World Heritage Site, and the Ciutat de les Arts i les Ciències, a complex of futuristic buildings, is a must-see for visitors.