One of the hardest truths that archaeologists have to face is that they'll never know everything there is to know about their discoveries. Some of the things they come across during their work don't seem to fit with the established narrative of history, and others have purposes that we can only guess at. Not knowing all the details only makes the discoveries more mysterious, though, and we all love a good mystery! Here are some fantastic and mysterious archaeological discoveries that baffled the people who found them.