John Caldwell Calhoun Mayo came to Paintsville as a teacher but soon became aware of the region’s potential in coal. He began buying mineral rights, eventually becoming Kentucky’s wealthiest citizen. His mansion, built in 1905-1912, is three stories with 43 rooms. Today the Mayo Mansion serves as Our Lady of the Mountains parochial school and can only be toured by appointment. For more information, please call (606) 789-3661.