So, what's 3 chunks wide, and about 10 chunks long?
The Notre Dame de Paris!
Right side doors:
From the skyrail:
Inside front doors:
Inside side doors:
Towards the sanctuary:
Looking back to the doors:
Outside, from a jungle treetop:
Daylight, left side detail:
All up, this has been about three weeks work. Yes, this is in normal world, and not creative.
With some assistance from Miss Murder, helping to level away a hill in the middle of the area, and in repairing a error when I discovered that I built it 3 blocks too long.
Thanks also to Megan and Asher for selling me a couple of chests worth of cobble as well.