The largest self-powered land vehicles in the world, Marion Power Shovel’s crawler-transporters were added to the National Register of Historic Places on Jan. 21, 2000.

A piece of the NASA crawler that was built in Marion is outside the museum. A video shows how the crawler taking Artemis I to the launch pad operates. “It’s definitely amazing.

NASA’s giant crawler transporter that carried the Apollo missions and the Space Shuttles to the launch pad ... Built by Marion Power Shovel Company of Marion, Ohio, the crawlers are 131 feet ...

Marion was a small community of about 2,000 people when inventor Edward Huber and his wife, Elizabeth, came to the city to build a revolutionary invention in 1865. The move accelerated ...

Because building a new crawler could be prohibitively expensive, NASA is currently in the process of updating one of the existing two. The new version will be called Crawler-Transporter 2, and it ...