"Investigate Mayan Stela" is a mission objective in Sequence 4 / Memory 01: This Old Cove
Walkthrough[edit]
Use your Eagle Vision to identify the Mayan Stela
Climb it, and activate the puzzle
You need to rotate and move the pattern so that it matches the objects on the ground, see screenshot for the solution - the two squares lay on top of the two square pillars, and the circle is on the circular pillar.