The German Pavilion was designed by Ludwig Mies van der Rohe in 1929 for the German representation at the International Exhibition in Barcelona held on Montjuic that same year. The Pavilion was conceived as a space of modest dimensions and refined materials. It was made of glass, steel, and four types of marble, intended to host the official reception led by King Alfonso XIII and German authorities. The uniqueness in the use of materials, which was always highlighted in his work, wasn't about their novelty but about the modernity they represented and their precise application in terms of geometry, the accuracy of their components, and the clarity of their assembly.