I thought this was pretty cool.  From Business First:

The master plan for Nationwide's planned corporate campus at Grandview Yard is centered around the "H building" that will be built first, followed by the "I building" to the north. Parking garages flank the complex. (Do you see the O-H-I-O?) A third office building and a third parking garage are also planned across Yard Street, but details on their size aren't set yet. The project also includes a new hotel and conference center along Goodale Boulevard.