This temple complex is the work of an ancient people. The first map is of a traditional family abode. In the past, the tribe dug horizontal homes, as a means of collecting flint.
As the people transitioned to a bronze age culture, they began construction of the Temple of Light. Although the structure is a gleaming white, the effect was achieved with a decorative coating quartz and flint.
The Temple was a beacon of solidarity for the people, but it also proved to be a beacon for raiders. The pirates devastated the village proper, taking valuables and prisoners. The raiders returned seasonally to plunder the people. For a time, the villagers disbursed to escape the onslaught.
In a few months, the tribe had relocated under the Temple. By concealing the upper openings with floor tiles, the villagers were able to extract revenge when they breached the Temple. The surviving pirates completed the turnabout with tales of a diamond encrusted temple protected by spirits of the earth.
The children discovered the leader of instability in the rock. Future generations will tell the story of a fortress of diamond beneath the crystal blue waters of a cenote. The stone age villagers speak in hushed tones about the mighty Sea Mage sunk the fortress in angry for the king's refusal tribute payments. Adventurers may find tablets of stone that tell of the powerful shaman who levitated the entirety of the Temple to allow her people time to escape the collapse into the waters below.
This series of maps are based on a mix of real world places and cultures, Grime's Graves, Ancestral Puebloans and people of Teotihuacan in particular.