This is my newest project based on the Washington National Cathedral in Washington, DC USA. I tried to replicate it to the one in real life as best as I could. The first 5 nave bays and the two west end towers are completed, I plan on finishing the rest of the nave and into the crossing within the next couple of months.

This replica includes:
-Redstone activated lights in the nave floor, nave aisles, nave vaulted ceiling, and triforium and clerestory.
-4 staircases in each west end tower, there's only one that goes all the way to the very top of the tower, they are the NE (South tower) & SE (North tower) stairs.
-Walkable triforium and clerestory level
-Pilgrim Observation Gallery which encompasses both towers