I do not believe that any man can preach the gospel who does not preach the law. The law is the needle, and you cannot draw the silken thread of the gospel through a man's heart unless you first send the needle of the law to make way for it. If men do not understand the law, they will not feel that they are sinners. And if they are not consciously sinners, they will never value the sin offering. There is no healing a man till the law has wounded him, no making him alive till the law has slain him.
C.H. Spurgeon

Ohio-Caverns

Ohio Caverns is a show cave located 30 miles (48 km) from Dayton, Ohio near West Liberty, in Salem Township, Champaign County, Ohio in the United States. A popular tourist destination and member of the National Caving Association, it is the largest of all the cave systems in Ohio and contains many crystal formations. Approximately 90% of its stalactite and stalagmite formations are still active. The cavern system was originally an aquifer, holding an underground river of melted glacier water. This river eventually receded to lower levels of the ground and is now unseen.