Ditherington Flax Mill, a Flax mill located in Ditherington, a suburb of Shrewsbury, England, is the oldest iron-framed building in the world. As such, it is seen as the world's first skyscraper described as "the grandfather of skyscrapers", despite being only as tall as a modern five-story building. Its importance was officially recognised in the 1950s, resulting in it becoming a Grade I listed building. It is also locally known as the "Maltings" from its later use.