A black metal railing curves around a narrow spiral staircase with patterned metal treads.staircaserailingmetalspiral staircasepatterned metal
A black metal spiral staircase winds upward around a central opening against a pale wall.spiral staircasemetalrailinginteriorceiling
A sweeping black spiral staircase curves through a sunlit atrium with a polished floor and groups of visitors below.spiral staircaseinteriorglasspolished floorrailingsunlight
