This is an old weather observation unit "I think" originally was built by the military some years back. We don't see these structures in Bay or Walton counties as they're primarily found in Okaloosa County and many are still on military reservation (as far as I know). They may be used for other things now but that's unclear; I'm trying to find out more about them. These things have been here my entire life and always strike me as outlandish somehow. Nevertheless, this was taken with an Olympus OM-D E-M5 Mark 11, using a 14-150 mm lens and a lens filter stack.