Return greetings Anon. Here's some info I posted recently in the Bridges & Maps #2 thread that may interest you:
Regarding the geometrical shapes on the platform where the temple on Epstein Island stands …
I would say
labyrinth
lunar labyrinth / lunar maze.
Images found in Google search. One is a vinyl record cover design, the other two are artwork. Then there's David Bowie's movie "Labyrinth" where a baby is threatened by a goblin king.
Searching for "rectangle within a rectangle" brings up a YouTube video on "Ex: Determine the Area of a Walkway Around a Rectangle," which I didn't include here, but the garden walkway example in the video made me think of a labyrinth.
Note: If you end up doing an image search on "lunar labyrinth," some of the results can be disturbing.
Updating to add: Come on over to the Maps & Bridges & Maps #2 thread to see more labyrinth commentary in response to my post there.