Clay County Arkansas (Vacant / Not In Use)  has 2 places on the National Register of Historic Places including 1 place of Statewide significance. Significant places include Piggott National Guard Armory, Scatterville Cemetery. 
Some of the country's most noteable architects helped create the Clay County places including  Delony & Davidson Wittenberg and  Cox Lumber Co.. Prominent architectural styles found in Clay Country are .