12 Alpine Engineering Systems Built Before 1600 That Are Still Running Today

12 Alpine Engineering Systems Built Before 1600 That Are Still Running Today Here are twelve Alpine engineering systems built before 1600 that are still running today: not as museum pieces, not as restored replicas, but as functioning infrastructure that farming communities in the Swiss and Austrian Alps are still using right now. In this video I walk through all twelve: the water channels, the drainage networks, the ventilation systems, the path walls, and the firebreak clearings that the people who built them never bothered to write down, because the knowledge lived in their hands and in the land itself. And at the end, I show you the one piece of the most important system on this list that most people walk straight past without understanding what they are looking at, and why it is the reason everything else has kept running for six hundred and forty-six years.