The strategically located De 1800 Roeden (The 1800 Rods) was actually built in 1900 as a part of the Stelling van Amsterdam military defence line. These days the former ammunition arsenal happens to function as a breeding ground for creativity. Although its chief purpose was once the city's defence, these remarkable buildings have now been converted into modern offices and workshops. The spacious complex covers an area of nearly two hectares and includes an amphitheatre.