Völklinger Hütte, a former ironworks, was declared a UNESCO World Heritage Site in 1994 thanks to its authentically preserved ironworks.
One look at Völklinger ironworks, and you will feel as if you have come to a science fiction studio setup. Visitors can stroll along a 5,000 metre walkway past the huge machinery and furnaces of the early 20th century. There’s also a science centre on site.