This is the Nike Hercules missile assembly building at the now-decommissioned U.S. Army missile base HM-69 in the middle of the Florida Everglades. The site, and this building, is unique in the fact that the National Park Service has incorporated it into the surrounding park and is working to piece together the true history of this formerly top-secret nuclear facility. This fairly mundane building is on the National Register of Historic Places:
The remote facility where this cold war building is located is now within Everglades National Park, down the same road as the beautiful Anhinga Trail.
Another interesting fact: the eye of Hurricane Andrew passed directly over this facility. I guess they built these things to withstand a nuclear war and a hurricane!
I have other images from this site available here in redbubble. Click on the images to view:
HDR: Photomatix, 3 exposure, Canon 5D, Tamron 28-300 VC