There are inventors, and then there are visionaries. An inventor is someone who can take existing materials and technology and make something that's new, but entirely in keeping with the era it was created in. A visionary follows the same invention process, but comes up with an idea or creation unlike anything else in the world, and so far ahead of its time that we wonder how they ever came up with the idea in the first place. This video is a celebration of ancient visionaries and their incredible inventions!