Valentine's Day Pictures

Happy Valentine's Day! It may feel like a modern commercial holiday, but Valentine's Day dates back to the fifth century. Today, St. Valentine's holiday of love and affection is celebrated around the world, with different cultures taking part in their own Valentine's Day traditions. Check out today's pretty red and pink pictures, from Kate Middleton accepting a sweet card from a young admirer to a man in Beijing almost getting carried away by his balloons while riding a bike.