View up the “staircase” of the Torre Guinigi in Lucca, Tuscany, Italy

Spiral staircase with stone steps winding upward inside a brick structure. Narrow walls and small windows allow limited natural light. The texture of old bricks and the muted tones of the stair's undersides are visible, enhancing the historic ambiance. Each step's edge appears worn, indicating long-term use, and the contrast between light and shadow creates a dramatic visual effect. The overall architectural style reflects a blend of functionality and historic elegance typical of medieval Italian structures.