While the church is still the original building, the outer wall / living quarters, and utility buildings are all depression era reconstruction projects that fairly accurately reproduce the original structures that were at one time on the grounds. Wind, rain, heat, and sun are all huge parts of what structures and fixtures in these old buildings have to deal with, and sometimes it is obvious when things like doors have been replaced as they haven't weathered quite thoroughly yet, which creates some beautiful changes in patina for the doors. It really is striking to view!
The wood fired stone ovens in front of every few living quarters are not only intriguing to look at, they also conjure up mental images groups of families baking needed staples for the next few days, bread loaves and whatnot. It certainly had to be much more difficult to operate than say a modern gas oven!
For Catholics, Protestants, persons of other faiths, including Atheists, the church building itself is a thing of beauty filled with world class artwork and iconography. The artwork is simply world class! The architecture, while sharing many common features with Catholic churches and cathedrals worldwide, is full of architecture and features that are unique to the Spanish Missions, and are things of pure beauty, worth every second to gander at. Even if the symbolism is meaningless to you, the enjoyjment of the artwork itself should be universal!