Spain's third city is an intriguing mix of old and new. The amazing City of Arts and Sciences has enough to keep you occupied all weekend: the futuristic buildings house a 3D cinema, a science museum, an aquarium, and plenty more. But you can also soak up more traditional Spanish culture by visiting the older parts of the city, including the incredible cathedral, Barrio del Carmen and its palaces, and the amazing central market. Oh, and did we mention there are beaches, too? Visit during the famous Fallas Festival in March if you want to see the city at its absolute best, the streets lined with incredible statues that are dramatically burnt down at the end of the fiesta.