CAVE MEN: Overnight in Jacob’s Cave

Spending the night in a 48-million-year-old cave in the Missouri Ozarks was everything you could imagine it would be. Except for the sounds.


February 4, 1893

Marble Cave gets national exposure on the cover of Scientific American magazine. Now called Marvel Cave, Missouri’s deepest known cave has a grand cavern so large that promoters inflated hot air balloons inside to showcase the size of the natural wonder.