CLOCKWISE FROM LEFT Louisa Marie Summer leads Daniel Schneider and Andy Weiss through light knee-deep snow in the Mamay Valley. Photo: Ben Dietermann A train conductor joyfully reunites with his partner in Atschinsk, one of many cities connected by the Trans-Siberian Railway. At more than 5,750 miles long, it is the world’s longest railway. Photo: Louisa Marie Summer Some languages are universal. When snow covers Sheregesh, the groms make the most of it. Photo: Louisa Marie Summer Talk about a quiver. This Sheregesh local busted out an entire set of shovels to clear his driveway. Photo: Louisa Marie Summer TRANS-SIBERIAN RAILWAY 057