IMPOSSIBLE ENGINEERING details how giant structures, record-beating buildings, war ships and space crafts are built and work. As the show revels in these modern day creations, it also leaps back in time to recount the stories of the exceptional engineers whose technological advances made it all possible. Episodes include… 1. Extreme Railroads: Beasts of the Bayou 2. Extreme Railroads: The Trains That Built America 3. Extreme Railroads: Monster of the Andes 4. Extreme Railroads: Himalaya Mega Bridge 5. Extreme Railroads: NYC Monster Train 6. Extreme Railroads: Rise of the Hyperloop