I was surfing the net earlier today when I stumbled upon a
defensive driving website with a little introductory video that, among other things, showed this rather complex interchange:

It's a mix of a cloverleaf and a stack, with lots of weird things going on in the loop ramps, and so I'm a bit curious about it. I have no idea where it is, though. My guess is somewhere in Texas, but that's based on nothing more than a hunch.
Can someone here pin it down a bit more exactly?