Countless different festivals are celebrated all over the world throughout the year. Some are national holidays, celebrated for religious and cultural reasons, or to mark an important date in history, while others are just for fun. Give thanks and tuck into a delicious meal with friends and family at Thanksgiving, get caught up in a messy tomato fight in Spain at La Tomatina, add a splash of color to your day at the Holi festival of colors and celebrate the life and achievements of Martin Luther King Jr. on Martin Luther King Jr. Day.