This is the train that goes from Cusco to Aguas Calientes at the base of Machu Picchu. When we arrived at the platform in Cusco, l located the conductor (or a reasonable facsimile thereof) and sang my line, "Pardon me, boy, is this the Machu Pichu Choo-Choo?" A guy who overheard me asked why I'd burst out in song. I told him it had been my lifelong dream to sing that line at that place. He said he was glad he could be there to share the moment.