Las Fallas is the biggest and most crowded festival in Valencia happening once a year in March. For 5 days (15th to 19th of March) the streets are closed to the traffic and huge and ironic cardboard monuments are put on them acting as a critic of that what, during the rest of the year, happens in the city or country. Those monuments will be burned away on the last night, as an end of the festival. Some people wear the folkloric dresses of the region and everybody parties, everybody drinks, everybody sings… And many people have fun using firecrackers. Fallas is the festival of fire, the right excuse to be loud and make things which are not allowed the rest of the year. A very big party with music, fire, alcohol and millions of people in the street.
Fallas is a festival to try once at least and, if you really happen to like it, come back again and again every year. Highly recommendable.