Thanks!
I know what the thing is, what it's called, who designed them, but part of the game is the figure out what and where the object is, then go grab it.
So until it gets grabbed, I'll not reveal any historical significance : )
( Joe mentioned "black SUVs" showed up - I assume that would be DPS (Texas Dept of Public Safety) folks, making sure no encroachment happens to that object - it's been vandalized, graffiti-ed, etc).