the.com/stairwell
the building's spine, where elevators fear to tread and acoustics make everyone a tenor
fire codeOften the only legally protected escape in a blaze
echo kingHard walls turn whispers into reverb-soaked confessions
vertical real estateSkyscrapers hide miles of stairs almost no one climbs
smoke trapPressurized to push smoke out during emergencies
hidden geometrySpiral designs ascend clockwise to favor right-handed defenders