There is hardly any better way than Glacier Express to explore the magnificence of the Swiss Alps. Starting from Zermatt, Glacier Express is called to be the 'Slowest Express Train in the world'. On its route, the train crosses 291 bridges, 91 tunnels, and seven breathtaking valleys. The train takes you to some of the most scenic places in Switzerland. The train has its services twice a day during summers and once during winters.