Megastructures

Take an eye-popping look at the greatest structures and machines ever created as we focus on some of the world's modern-day miracles of construction. Go behind the terraces to see how World Cup football fever has transformed South Africa's infrastructure and resulted in the creation of some truly stunning stadiums. In The Golden Train meet the 10,000 plus staff who worked on 65 separate sites to develop Africa's first high-speed railway network in time for the 2010 World Cup. South Africa Stadiums witnesses the challenges faced by construction teams as they battled against a very bad rainy season and stormy conditions to produce new stadiums in Soccer City and Cape Town. Read more at http://www.tv-links.eu/documentaries/National-Geographic--Megastructures---South-Africa-Stadiums_30917/#hYjCM6aleT3P1JFC.99

Go inside the construction of China's three ultimate bridges: the Lupu, the world's longest arch bridge; the Runyang, the country's largest suspension bridge; and the Sutong, soon to be the longest cable-stayed bridge in the world.

An ambitious young king who seizes the throne of the Khmer Empire by murder, commissions the largest stone temple in the world built entirely on a swamp - the mighty temple of Angkor Wat.

Royal Caribbean's Oasis of the Seas, one of the world's largest cruise ships, which features 16 decks and can accommodate 5400 passengers.

This metal-chomping monster takes up the floor space of an entire factory and it can reduce the equivalent of 450 cars an hour to little more than pulp.