The Landmark Tower Company was based out of Fort Worth, Texas and founded by Henry “Hank” McGinnis.
[1] McGinnis, who had previous experience building electric transmission line towers, evidently came up with the unique design while scribbling a Christian symbol of a fish on a napkin.
The legs taper down from larger footings to a thinner middle and then expand again to the point where they meet.
The outer cords continue all the way up to the top of the tower in one swoop, but the inner three loop around into each other, creating a central ovoid and voided core.
The individual base leg columns were erected by crane, while the upper sections of the tower were built using a Sikorsky S-64 helicopter.