The Faerie Queene is about 35,000 verses long. By comparison, Savitri is about 24,000 verses long, and Beowulf is about 3,000 verses long. The Sanskrit language Mahabharata, however, is many times longer than The Faerie Queene.
BookRags makes this quantitative note; it also reveals some more information about the publication of The Garden of Eden and offers some discussion of thematic content.