The 1 Train to Board For an Epic Front-Row Seat to the Swiss Alps

With over 89 miles to cover and a whopping 7,300 feet to climb, you'll quickly realize this route is not only visually appealing; the engineering behind this acclaimed railway is intriguing as well. Thanks to the brilliance of the Brusio Circular Viaduct, there is a point in which the track circles around itself — kind of like a giant slinky — and assists in spreading out the seven-percent incline up the steep Alpine gradients.