Steered by his 1913 railway guide, on this journey Michael Portillo explores the once-great empire of Austria-Hungary, domain of the famous Habsburg monarchs. Starting in Budapest, the capital of Hungary, he travels via Bratislava in Slovakia to the beautiful and elegant city of Vienna, where he immerses himself in pre-war decadence. From there, he travels to Salzburg, before heading to the magnificent scenery of the Salzkammergut region to visit the emperor's Austrian summer house at Bad Ischl, where in 1914 European history changed course forever.