This train leaves from "the ancient village of Ollantaytambo, a gem among Inca architecture, tracing a winding route along the Vilcanota river past snow-capped peaks and verdant crops until it slowly enters the enchanted rainforest that hosts the mystical Inca citadel." We arrived in Aguas Calientes, the tropical town nearest the shrine, happy and relaxed, ready to see Machu Picchu the next morning. One of the world's must-see sites, it was worth the ride.