Entrance or Exit

The Plaza Area of the Temple of the Winged Lions is a mystery. What was it used for?

Here is an opening on the shallow end but what was it for?

Here is a closer look as the team remove yet more dirt and obstructions. Can you see the slot and hole near the corner of the wall and opening? Was that for a door frame? There were more questions than answers at the end of the dig season - but solving the mystery is what archaeology is all about.