Jonathan's journey takes him to King's Cross St Pancras, a masterpiece of Victorian design, widely regarded as London's most stunning and romantic station. With unprecedented access to St Pancras, aided by champion climber Lucy Creamer, Jonathan scales all over the buildings to investigate the innovations and techniques used to construct both the train terminal and the elegant Midland Hotel. On the Midland Hotel, Jonathan climbs over 240 feet up the immense clock tower to explain how Britain had different time zones until the advent of stations like St Pancras. He discovers water-powered elevators, why penthouses used to be on the ground floor, and how the hotel was almost doomed to failure by only providing nine bathrooms for 400 bedrooms.And in the station he scales the incredible glass span roof that crosses the main terminal - the largest of its kind in the world.