McDonald’s Secretly Built a See-Through Restaurant in a Chicago Warehouse —Here’s What’s Inside The fast food giant showed off the new concept to franchisees at its Worldwide convention in Las Vegas. Previous Article An Olympic Gold Medalist Fell in Love With This Franchise While Traveling. Now He’s on Track for $275k in Revenue: ‘I Would Choose It Over a Million Times’ Next Article They Raised Hogs on an 89-Acre Farm and Couldn’t Get Out of Debt. Then a Data Center Made Them a $22 Million Offer.