one thing to be noticed about dwemer ruins is their love of color coding: walls, floor, chairs, beds, mostly harmless stuff is a greenish stone. Heavy machinery, pipes with steam, moving parts, traps, and anything that could be counted as an OHSA hazard is that bronzey gold metal, and that evil twirling blade of sudden doom is black because honestly they hate you from beyond the grave.
"Were made to disappear into thin air because they poked the wrong magical thing" is not a very good explanation for the disappearance of an entire people. Now, "disintegrated" is a good explanation, and one of my favorites. ^^