Michigan Radio's Lindsey Smith covered the auction at the former GM Wyoming Stamping plant. The plant closed in June 2009 as part of GM's bankruptcy.
The auction was held on Wednesday and Thursday of this week. The auctioneers said they'll sell off anything leftover today.
Smith said it was easy to get lost as she took photos of the more than 2 million square foot building. Here's an audio slideshow she put together: