What kind of structure is this?

In this video a couple dirt bike riders arrive at this unusual antenna? in the Eastern part of the US.

Best view is probably 2:27.

Not a good view on the video, but it looks like it might be a Sturba antenna or perhaps support for a Rhombic antenna.

They are semi directional antennas and were/are used for shortwave broadcast stations like Voice of America. I do know that the Canadian short wave broadcasters had one or more in Eastern New Brunswick aimed at Europe.

Thanks, it would be interesting as a filming location.