IMO, they're both right, but for anon291's reasons. tsimionescu's perception of The Pantheon is reflective of a shared cultural consciousness, albeit one that's cosmopolitan and intellectual. He and anon291 (maybe) see different buildings because they either have different cultural perspectives--i.e. perhaps anon291 is a practicing Catholic (or esoteric pagan?)--or at least anon291 is cognizant that many people would see a space with a meaning quite distinct than tsimionescu's. The Hagi Sophia is great example--most foreigners see one building, local Eastern Orthodox see another, and local Muslims a third.

It's difficult, if not impossible, for people to see architectural spaces in the way an animal or alien might see them. Even when the culture which built it is totally alien or unknown, that basic fact, plus the context in which it is seen by the observer (including how they arrived there), as well as typical architectural features (e.g. steps) imbue it with meaning that color everything about it. Our whole world is like that. Take, for example, a stop sign--we simply can't perceive that object, at least without effort, without the culturally imbued meaning. It's not just a red & white octagon with shapes in the middle; the meaning vastly overshadows its raw physical properties.