One answer to the tricky question of what to do with an abandoned Walmart store, one of hundreds of big box units sitting vacant across the US: convert it into the country's largest single-floor library. There are some vestiges of the previous use, though, such as self-checkout units. "Unidentified novel in the bagging area"... It also looks a bit too smart, stylish and pristine - I like my large bookshops to be more like Barter Books, to be honest.
(Thanks to Dave for the link.)