Introducing the Grand Paris cast-iron spiral staircase, the big brother of the Grand Paris staircase Paris and Paris Plus with a diameter of 240cm. It's a majestic monumental staircase developed by Villa d'Or for residences and public spaces. It is the largest diameter cast-iron spiral staircase in the world.

To see the staircase in real life, don't hesitate to go to the Bobbies shoe store (3 Rue du Cherche-Midi, 75006 Paris), eat at the Famille restaurant (Kongens Gate 28, 7713 Steinkjer) in Norway, sleep at Fellin Castle (Tasuja pst 4, 71020 Viljandi) in Estonia or learn Swedish at the University of Gothenburg in Sweden.