However, the main reason for the austere concrete finish has more to do with pragmatics than either modern minimalist architecture or even evocative spiritual references. Since the building is located only five miles above a fault line, structural integrity is a major concern. The odd juxtaposition of the domes make the building more resistant to earthquakes. Hopefully it’ll be able to survive the next big quake that is, by some estimates, ready to hit any day now.