What structure has forms called 'Dogleg', 'Straight', 'Well' and 'Circular'?
Stair Railings Step (footing) Stairways Stair Well staircase Upstair STAIRCASES Step (foothold) Helical staircase Stairway Ascensorium Staircase Double spiral staircase Curved stairs Staircases Stairwell Helical Staircase Stairs Split stairwell Spiral staircase Straight stair Intermediate landing Downstair Split Stairwell Upstairs Flight of stairs Double helix staircase Spiral stairs Winder (step) Circular staircase Alternating tread stairs
circular staircase alternating tread stairs stairwell upstairs spiral staircase staircases ascensorium step footing stairs well staircase double helix staircase straight stair stair double spiral staircase split stairwell helical staircase curved stairs stair railings staircase stairway stairways upstair flight of stairs step foothold spiral stairs downstair winder step intermediate landing
staircases
WikipediaEntity
STAIRCASES