Missouri is home to hundreds of incredible caves, from glowing underground rivers to enormous chambers that feel straight out of a fantasy adventure. Grab a light jacket, channel your inner explorer, and get ready to discover Missouri caves you can actually visit. Smallin Civil War CaveSmallin Civil War Cave carries more layers of history than almost any other cave in Missouri. Onondaga CaveOnondaga Cave is the kind of underground space that makes even experienced cave visitors go completely quiet. Missouri caves are spectacular individually, but Marvel Cave wraps history, geology, and pure spectacle into one unforgettable package.