Yggdrasil
Yggdrasil (Unknown). is a mythical-tree. Yggdrasil is the immense cosmic tree at the center of Norse cosmology, connecting the Nine Worlds. Its branches extend into the heavens, and its three roots reach to wellsprings that nourish creation.. Source: Poetic Edda, Prose Edda (Snorri Sturluson, 13th century)