All right, I admit I did that to grab people's attention.
But I am serious, too, although maybe "fertility cult" might be a better term.
I don't recall noticing this last time around, or reading anyone else saying this, but that Leviathan monument/altar looks very much like a visual representation of male and female sexuality.
I first noticed the design on the upright as being very phallic ... I don't want to offend anyone's sensibilities, but if you look just below the snake heads, you'll know what I mean ... And the shape of the entire stone itself could certainly be interpreted as being phallic.
As if that isn't enough, the horizontal altar slab placed strategically in front of the vertical upright reinforces this male/female sexual imagery. To top it all off, the altar then parted, with the upright piece standing tall between it ... do I need to say more?