It seems like every day there are new discoveries being made about the ancient civilizations that have come before us. Archaeologists and scientists have been able to find and research artifacts from the ancient world to learn more about how our ancestors lived and how we came to be who we are.
Most of the time, the findings are evident after doing extensive research, like the invention of the wheel or the purpose of the pyramids of Ancient Egypt. But there are times that no matter how much research is done, scientists have no idea how or why things existed.
Here are the biggest ancient mysteries that still baffle scientists today: