The deeper the trio goes, the further back in time they seem to travel, encountering "living fossils" and extinct species, turning the journey into a literal walk through Earth’s evolutionary past. Why It Still Works
Even 160+ years later, the novel captures the universal human urge to explore the unknown. It’s less about the destination (which, spoiler: isn't actually the exact center) and more about the and the wonder of discovering a world hidden in plain sight. A Journey to the Center of the Earth - Jules Verne
Verne was meticulous about the science of his day. While we now know the Earth has a molten core (making the journey physically impossible), he used contemporary theories—like hollow-earth ideas and fossil records—to make the adventure feel plausible to 19th-century readers. The deeper the trio goes, the further back