Website datacenterknowledge.com recently listed the 10 largest data centers in the world. Landing at No. 9 is the Microsoft Data Center in Quincy, in the heart of Grant County. Officially, the website made Quincy 9A, with Microsoft's San Antonio data center 9B.
The photo above shows the Quincy site. Until two years ago, Microsoft planned to build a second adjoining center. For reasons involving state taxes, it stopped and moved more of its data to Texas.
Both San Antonio and Quincy measure about 470,000 square feet. To view a video showing the inside of the Quincy site, it's here.