The Steel Museum was very worth the visit. It traces the development of the U.S. industry in terms of technology, industrial organization, impact on communities from colonial days through the laissez-faire era, unionization, the rise of foreign competition, and finally to its demise. We learned alot.
It's worth noting that the museum is well done. Unlike some modern museums, there's enough information to tell the story and little or none of the stuff that covers superficiality with flash.