The waterfalls at Florida's Rainbow Springs State Park are artificial, and date back to the early days of the park as a private attraction. In this case that actually makes them old enough to be historic, and the state continues to maintain them under state ownership.
On the audo, I misidentify the first waterfall as "Seminole Falls". Apparently this fall has no name, and "Seminole Falls" is a short distance away, below "Rainbow Falls" (which is the second waterfall in the video).
![](https://s2.save4k.ru/pic/7WcmZKGEvws/maxresdefault.jpg)