Mayan Stelae is a collectible in Assassin's Creed 4: Black Flag. Solving the puzzle gives Edward a keystone.
Walkthrough[edit]
This island has 2 Stelae on it. This one is found on the Northern portion of the island.
This one takes a bit more effort to line up. Take a moment and spin the 2 small, close together circles toward the top. Line up the far one with the single highlighted pillar closer to Edward.