Spiral – Stairs to Heaven and Hell is a compilation of two hundred spectacular images of this beautiful, elemental but often overlooked architectural feature. Edited by Oscar Riera Ojeda and using photographs ranging from the beginnings of photography to the present day, this collection offers a unique metaphorical perspective on the staircase in architecture; passages between different levels, where light often floods in from above and darkness lurks below.

• Photography by various contributors
• Edited by Oscar Riera Ojeda