Anna Karenina, written by Leo Tolstoy, is a sweeping 19th-century romance novel set in Imperial Russia. The story follows the tragic love affair between Anna Karenina, a married aristocrat, and Count Vronsky. The novel explores themes of love, passion, morality, and the constraints of societal norms. Anna Karenina is known for its richly developed characters, intricate plot, and profound exploration of human emotions and relationships.