How did they do that?
We love to build things. More than that, we love to build really cool things. We have the tools and know how to create just about anything you can dream up. With modern tools and technology, building cool things is extremely easy and efficient. But what about back in the day or even further back in the day. How did they build things without modern technology? Here are a few that have us scratching our head and no one has definitively figured out how they were built.