An old Toys R Us store in Milwaukee is now home to Engine & Transmission Exchange, a remanufacturer for car parts. Meanwhile, six dead malls across the U.S. are either in the process of being turned into or have been revamped as massive manufacturing plants and logistics hubs. The empty Euclid Square Mall in Euclid, Ohio, for example, is under construction to become home to a new Amazon. Click to read more at www.cnbc.com .