Synopsis: National Geographic takes you on a tour of some of the most complex buildings and machines ever built. First, explore the C5 Galaxy, a megaplane that stands six stories tall and is as long as a football field. Next, follow the entire process of building an epic-scale casino. Then, check out the massive earth-moving machines of the Ekati diamond mine. Finally, travel to the Netherlands' Super Port, which receives some of the world's largest ships.