In this photo of an exterior, open-air chapel or shrine, you can just barely see the “Solstice Hole” visible in the earlier photo. It’s hidden behind the altar pillar on the right side, towards the bottom. Archaeologists think that, in addition to tracking the solstices, the hole may have been used as an “oracle mouthpiece” so that sounds or voices from the interior apse could issue forth mysteriously to the exterior chapel. The triangular altar table you see in the center here is the only one of its kind in all of the Maltese temples.