This episode unlocks the engineering secrets of Valkyria – Europe’s tallest drop coaster – to reveal how it thrills thousands of riders each day by dropping them 50 metres straight down, reaching a speed of 105 kilometres per hour.

Charting the 650-kilometre, cross-country journey of Europe's fastest passenger train, we showcase the innovative technology that keeps it on the rails through tunnels and around tight bends at 300 kilometres per hour.