Which of the following works is NOT attributed to Vergil?

The Iliad is a work attributed to Homer, an earlier epic poet, rather than Vergil. It tells the story of the Trojan War and features key figures like Achilles and Hector. Vergil, who lived later, is best known for his own epic poem, The Aeneid, which follows the journey of Aeneas as he flees Troy and seeks to establish a new homeland in Italy.

The Aeneid, along with The Eclogues and The Georgics, are all works that are definitively associated with Vergil. The Eclogues is a collection of pastoral poems, while The Georgics is a didactic poem focused on agriculture. Both showcase Vergil's mastery of poetic form and his deep engagement with themes of nature and society. Thus, identifying The Iliad as not being authored by Vergil is correct, as it originates from a different era and poet in ancient literature.