EpisodeSecret Staircases99% Invisible · Mar 21, 2013 · 11 minPlay · 10:36SaveShareEpisode pageWherever there is sufficient demand to move between two points of differing elevation, there are stairs. In some hilly neighborhoods of California–if you know where to look–you’ll find public, outdoor staircases.Related12:10Why North America Can't Build Nice Apartments (because of one rule)About Here2.2M views • 2 years ago13:54All Tube Stations Have Fifteen FloorsGeoff Marshall1.2M views • 8 years ago3:45The Dutch Solution for Safer Sidewalks - Continuous SidewalksNot Just Bikes452k views • 6 years ago7:19The Lively & Liveable Neighbourhoods that are Illegal in Most of North AmericaNot Just Bikes2M views • 6 years ago