English: Las Fallas, Valencia Spain Spring Festival, the building and burning of the Falla 15th to 19th March. Europe's largest and longest street party, an exuberant, anarchic, round the clock swirl of fireworks, music, explosions and fire that brings an estimated two million visitors to the city. The more than 350 fallas are giant sculptures of papier maché and wood. They satirise celebrities and politicians and local customs. The cremà after midnight on 19th March is when every falla goes up in flames except for one small ninot.