An exploration of some of the world's most famous structures and the inspirations of the architects behind them.
Season two of the fascinating documentary series providing an inside look at some of the greatest works of architecture in the world, from Lambeth Palace Library to Paris' Holy Trinity Church.
A look at how Thomas Heatherwick's unusual and stunning design of many staircases became a mind-blowing tourist attraction in Manhattan, known as the Vessel. (S1, ep 4)