A former sanatorium saw barbaric experiments on its thousands of patients in a bid to cure their tuberculosis.
Waverly Hills Sanatorium in Kentucky opened its doors in 1910 in an attempt to contain an outbreak of tuberculosis - known then as the "White Plague" - in Jefferson County and was thought of as one of the most advanced hospitals in the country.
The site closed in 1961 and is today believed to be one of the country's most haunted locations.
