At eight stations throughout the MAK, visitors can play, build, and develop new creations using a multitude of building blocks—right in the middle of the Columned Main Hall, the Works on Paper Room, and DIREKTION FÜR ALLE!.

This major interactive exhibition for children aged four and up was curated based on the unique private collection of graphic designer Claus Krieger, which comprises some 150 construction kits from the years 1890 to 1990. It follows the thesis that a kind of “evolutionary development” of building blocks produced this abundance of construction kits. Toy companies experimented with a wide variety of materials: artificial brick, wood, and metal, but also long-forgotten materials like Galalith and even rubber. Countless ingenious variants were developed to create connections that were durable yet easily taken apart. Ultimately, Lego managed to perfect the interlocking principle, and most other companies disappeared.