Two of these might be visited: The Minden is actually a dredger released in 1882 and employing a bucket chain technique. You can find now numerous disabled parking Areas near the entrance, but fairly often they don't seem to be occupied by disabled people today, which is annoying and inconsiderate. https://weisheitsnews.de/die-rolle-von-sanitatshausern-bei-der-unterstutzung-der-hauslichen-pflege-in-duisburg/