Marengo Cave is located in Marengo, Indiana. One of only four show caves in Indiana, public tours of the cave have been given since 1883. Tours commenced just days after the cave’s discovery by two school children. The cave was designated a National Natural Landmark in 1984.
What is the reason that some believers are so much brighter and holier than others? I believe the difference, in nineteen cases out of twenty, arises from different habits about private prayer. I believe that those who are not eminently holy pray little, and those who are eminently holy pray much.
J.C. Ryle