Beneath vast mountains and across open moorlands, Scotland’s scenic railways connect coastal towns and rural villages through a breath-taking Highland landscape voted the world’s top rail journey. In this episode, we ride the magical West Highland line with train conductor, Suzie Sangan, whose Instagram posts celebrate the world’s most beautiful railway line; we meet the engineers abseiling beneath the Forth Bridge to carry out essential checks on one of the world’s most famous Unesco Heritage sites and we take the train to Blair Castle for the pipes and pageantry of the Atholl Highland Gathering.