Famous Vatican Winding Staircase Rome

vatican, rome, staircase, spiral, italy, museum, stairs, white, architecture, black, old, travel, italian, europe, down, helix, art, design, double, famous, stair, natural, interior, tourism, circle, ancient, round, museums, tourist, indoor, steps, bramante, city, inside, grand, tourists, descending, vaticani, musei, light, ornate