Architecture is meant to fulfill both practical and expressive requirements, and thus it serves both utilitarian and aesthetic purposes. When you look at a structure, you can distinguish these two ends but they cannot be separated, and the relative weight each of them carry can vary widely. Plus, every society has its own, unique relationship to the natural world and its architecture usually reflects that as well, allowing people from other places to learn about their environment, as well as history, ceremonies, artistic sensibility, and many aspects of daily life.