This is the lookout tower at Robinson Preserve in Bradenton. Actually, most natural preserves in my area have lookout towers because its so flat you need some way to see above the scrub and trees. Any place that has mountains, or even hills, would have no use for these because if you want a vista you just walk to the top of the nearest hill. As I write this I'm on the south island of New Zealand and I've not seen a single tower like this. What I have seen are plenty of hills and mountains. Two different worlds entirely.
From daily images