sinister temple idea

These are my Outdoor primative temple ideas; Its the beginning of a text, a few of them I have completed so far. If you have any ideas, please state them.
•Processional walkway, built by hand
•9-stone circle, gathered by architect(s) and carried by hand
•Altar made by temple architect(s)
•Trails cut by the temple architect in chaotic lands...
*Primitive stone stacking and statues made of stones, that have been modified and assembled with rubber cement and art supplies
*Burn pit
*Clay digging pit and primitive kiln for creation
*Gardens and new plants introduced to area
*Area protected by extreme sinister forces
*various Hiding places in wilderness
*Entrance and escape routes
*Only members to know the actual layout for security reasons
*Buried programmed quartz point
*Lots of hidden weaponry
*All of the physically sacrificing tasks are dedicated to all, a few or one of the Dark God's.
*Creation of new writing system and communication.
*Creation of nexion and unique symbols​.
*Forming, creation, and establishment of new culture and closed society