[ggoodale]

Found this[1] as well while poking about - fairly tall structure, unique curved shape, nothing but a road, some outbuildings and some antenna masts for miles in any direction. Thoughts on what it might be?

[1]http://maps.google.com/maps?hl=en&ll=40.509945,93.236595...

[alexhawket]

If you take the road south from there, there's a giant round bunker like building

http://maps.google.com/maps?hl=en&ll=40.425258,93.25&...

[jojopotato]

If you keep following that it looks like the blurry road thing crosses a river and ends in another round bunker.

[prawn]

No obvious parking, otherwise could be employee accommodation of some sort. Hard to tell how narrow those spines are. I'm guessing four storeys tall?