Straight through the existing building, eight steel columns stand on eight individual foundations. The columns support the new extension – with two exhibition floors that total 1,000 m2. So, structurally and architecturally, the extension is independent of the old building. The extension – also called the Art Cloud – is clad with 55,000 three-dimensional ceramic elements produced by Koninklijke Tichelaar in Makkum. Together, the mixed blue-and-white glazed tiles measuring 20x20 cm and 10x10 cm, form a subtle surface which, depending on the weather, merges into the heavens. On the northern side daylight floods into the two, new exhibition floors through a large, glazed pane in the tiled superstructure. Inside, visitors have a panoramic view of the city.