Spiral Stair (Australia)
Spiral Staircase at the Vatican Museum (Italy)
Loretto Chapel Staircase (USA)
Tulip Staircase at the Queen's House (England)
Staircase at Lello Bookshop (Portugal)
San Francisco's Tiled Steps - World's Longest Mosaic Stair (USA)
"Umschreibung" at KPMG Building Munich (Germany)
Stairs at the Longchamp Store (New York)
Vertigo Staircase at the QVB Building (Australia)
Bridge-stair at the Traversinertobel (Switzerland)