Beowulf is an Old English epic poem, set in Scandinavia, that tells the story of a Geatish hero who battles the monster Grendel, Grendel's mother, and a dragon. Beowulf is celebrated for his exceptional strength, courage, and loyalty, embodying the ideals of a Germanic hero. The poem explores themes of good versus evil, the importance of reputation and loyalty, and the cyclical nature of life and death.