In the 1800s some people believed Mammoth Cave might have healing properties. To take advantage of this healing power, in 1842 cave owner and physician Dr. John Croghan created a hospital for tuberculosis patients 183 feet beneath your feet.
Unfortunately, the cave holds no cure for tuberculosis, or any other disease. In less than a year, the patients left the underground hospital. Two of their huts remain in ruins along the passage known as Main Cave, a silent testament to a lost hope.