1) The world's largest flower is the Rafflesia arnoldii, which can grow up to 3 feet (1 meter) in diameter and weighs about 15 pounds (7 kilograms).

2) The FIFA Women's World Cup has been held since 1991 and showcases the best women's national soccer teams from around the globe.

3) The oldest known musical instrument is a flute made from a bird bone, estimated to be around 43,000 years old.

4) In Norse mythology, Valhalla is a majestic hall located in Asgard, the realm of the gods. It is the afterlife destination for brave warriors who die in battle, where they are greeted by the Valkyries and engage in feasting, drinking, and preparing for the final battle of Ragnarok.