Liels, Lielāks, Lielākais S03E03
06:50 , trešdiena, 18.septembris
Metro. Every morning over four million people descend into a vast network of tunnels beneath the city: The London Underground, also known as: The Tube. It's the biggest metro system in the Western world and a true masterpiece of subterranean construction. The Tube owes its success to four key inventions found in a series of landmark metros. At the heart of each lies a major breakthrough that allowed metros to tunnel ever further under our cities. One by one, travelling up the scale, we'll reveal the incredible stories behind these structures, and the inventions that made each network bigger than the last. Four ingenious leaps forward, from big, to bigger, into the Western world's biggest.