Gulliver's Travels is a novel by Jonathan Swift that follows Lemuel Gulliver, a surgeon and sea captain, through various adventures in fantastical lands, including Lilliput, Brobdingnag, Laputa, and Houyhnhnms. Each voyage exposes Gulliver to different cultures, societal norms, and ultimately transforms his perspective on humanity, leading to his disillusionment with his own species. Following numerous trials, including being captured by miniature people and giants, he returns to England, profoundly changed and indifferent towards his previous life.