13 Staircases Worth the Climb (Photos) | The Daily Beast

First it was guns, germs and steel, then it was salt—now, it’s the invention of stairs that changed the history of mankind. In a new book, Staircases (published by Vendome Press this month), co-authors Oscar Tusquets Blanca, Martine Diot, Adelaïde de Savray, Jérôme Cognard, and Jean Dethier present a sweeping history of the innovation that allowed man to get off the flat ground and start walking through space.

via 13 Staircases Worth the Climb (Photos) – The Daily Beast.