How and why was this constructed at this angle? Incredible. Further more how can such a construction like the following actually be planned?
We chiefly use cuboid blocks in construction to avoid planning and unique shaping. Yet it presented little problem for these builders. How? How was it all planned? How were the blocks offered together to get an initial match? Did they cut one block then use a mould to get a mirror image then create a match?
The complexity of it all is stunning.