Disneyland Paris has turned children’s imagination into something really tangible—it has built a dream castle using drawings by kids. The initiative was inspired by kids’ creative approaches and realized by BETC Paris.

For the project, Disney collaborated with kids from all across Europe as well as a professional team of architects, web designers and construction workers. The result is a 10-meter high masterpiece that features a mosaic of vibrant children’s drawings. As many as 1,300 concepts were sent in by children from all corners of Europe—16 of them were used in the project as the basis of the building, and the rest was engaged in the promo campaign.

The building itself, called “Imagination Castle,” appeared in the Jardin des Tuileries. In addition, the kids’ works that were not used in developing the building, appeared covering the walls of the Concorde metro station for 10 days of a promotional effort.