Jonny visits Spain to see how iron ore is turned into steel and then forged into 120 metre long rail sections, before being laid as part of Spain’s newest high speed rail link. These rail lines will see trains reach speeds of up to 350 kilometres an hour – the same as Formula 1 racing cars. Jonny then gets his hands dirty at a factory in Austria, which produces nearly eight thousand kilometres of steel rails a year and is the size of a small city.