On my 1941 concrete block house are two concrete stoops, about 3 ft by 4 ft and about 14 inches above grade. "Someday" I might replace them, so I wonder how much trouble they would be to demolish. What would be inside them? I hope that the whole stoop isn't solid concrete. Is it likely that the builders made something out of concrete block and poured the slab over it? The sides show poured concrete, not block.