So, when Michael said church, I though Zelda!
I always loved Ocarina of Time (best game ever!). And would really like to build the temple of time with my own hands. I know it’s appeared in other Zelda games too, but I really like the original and I think I could do a good job adding some extra details that were missing from the N64 (damn I’m getting old).
Taking a modular approach to the design will give me some good assets which I can use for other stone architecture. I may also try to design another interior at the end, using the building blocks I’ve created for the temple.