In Bowling Green, Ohio, this non-profit museum is devoted to the history of construction, dredging, and surface mining equipment. Operated by the Historical Construction Equipment Association, it preserves and presents the machinery that shaped large-scale building and earthmoving, including cranes, shovels, rollers, scrapers, bulldozers, dump trucks, concrete mixers, and drills. By covering many kinds of heavy equipment rather than a single machine type, it tells the broader story of how construction and extraction industries developed. An expansion effort that began at the end of December 2021 reflects its continuing role in safeguarding industrial machines and history that can easily disappear once they are no longer in everyday use.