The moats and turrets ' though Gothic in style ' are purely decorative, and the staircase is noted for its innovative straight flights and landings rather than the old spiral form that was designed to fend off invaders.
Many deeply appreciate this more accessible structure. 
mnli hypothesis: Many deeply appreciate this more accessible structure.  premise: The moats and turrets ' though Gothic in style ' are purely decorative, and the staircase is noted for its innovative straight flights and landings rather than the old spiral form that was designed to fend off invaders.