Viking mythology is full of fearsome and mystical beings. Nidhogg, a monstrous dragon, gnawed at the roots of Yggdrasil, the World Tree, while the terrifying Fenrir was prophesied to bring about Ragnarok by devouring Odin.
Other creatures include the Kraken, a sea monster capable of sinking ships, and the Valkyries, who chose which warriors would enter Valhalla. These beings shaped Viking beliefs about fate, battle, and the forces of chaos and order.