I remember when I was a kid there was a picture book (by David Maccaulay, I think) about future archaeologists digging up a present day motel, and trying to exp

I remember when I was a kid there was a picture book (by David Maccaulay, I think) about future archaeologists digging up a present day motel, and trying to explain the things they found. The default explanation for everything (coffee makers, toilet seats, etc) was that it served some religious purpose, because if you can't figure out a useful purpose for some object, "religious relic" can pretty much fit anything.