Every year, in a small town in Spain, people celebrate a very unusual festival called "La Tomatina." This festival happens on the last Wednesday of August. During the festival, thousands of people gather in the streets to throw tomatoes at each other. It all starts at 11 o'clock in the morning. A loud signal sounds, and trucks full of tomatoes arrive. People grab tomatoes, and the air turns red as everyone starts throwing them. The fight lasts for one hour, and by the end, everything and everyone is covered in tomato. After the tomato fight, fire trucks come and wash the streets and people. This tradition started by accident in 1945 during a parade. Since then, it has become one of the most exciting and fun festivals in the world.