Let’s pretend it’s not freezing cold and winter, shall we? (Though if you are a skier, you love this weather, I know.) Turn your attention to the southeast. Georgia, to be exact.
Mystery site in Georgia. Photo courtesy of Chad Carlson.
What’s your guess?
Preservation in Pink 
I’ve got to go with Civil War Something-er-other.
It reminds me of a cane crushing mill, somewhat redolent of the ruins you might see in the Caribbean.
I agree with richholschuh – reminded me of a cane mill I saw in Florida.
I do not know much about stone in Georgia, but in Vermont we did not have tools for such precise stone work before the 1820’s.
This does not appear to be in the octagon house inventory for Georgia (www.octagon.bobanna.com) but should be!
An Armory?
It resembles the bases (or remains) of many of the tower type structures built by the Civilian Conservation Corps during the New Deal programs, usually some type of pump house or water tank.
This octagonal stone structure is an outbuilding or smokehouse from the latter half of the 19th century on the former Granite Hill plantation outside of Sparta in Hancock County, Georgia. The 1850’s Greek revival house was dismantled in 1968 and was reconstruction was planned in Macon, Georgia. Unfortunately the building where the disassembled house was stored caught on fire and most of the house was lost.
I suppose I should have said those who know exactly, resist the urge to guess! 😉