When you go to look at a historical artifact in a museum, it will be accompanied by a plaque that tells you what it is and where it came from. In some museums, you might even get an audio recording or a guided tour to provide you with more detail. Not every discovery comes with an explanation, though! Even with all the information at our disposal in the modern age, there are some things that are best scientists and experts find it hard to explain. See if you can come up with explanations for the things you're about to see in this video!