Superhighways
- Episode aired Jan 28, 2008
- TV-14
- 44m
On this episode of Modern Marvels we'll construct, and deconstruct, the roundabout ribbons that comprise the world's Superhighways. Our road trip starts in Houston, Texas where a multi-billi... Read allOn this episode of Modern Marvels we'll construct, and deconstruct, the roundabout ribbons that comprise the world's Superhighways. Our road trip starts in Houston, Texas where a multi-billion dollar expansion project is widening a stretch of superhighway to a spacious 20 lanes. ... Read allOn this episode of Modern Marvels we'll construct, and deconstruct, the roundabout ribbons that comprise the world's Superhighways. Our road trip starts in Houston, Texas where a multi-billion dollar expansion project is widening a stretch of superhighway to a spacious 20 lanes. Then we're off to China's 28,000-mile National Trunk Highway System.