More than two million people a year make the once-in-a-lifetime trip to Jungfraujoch, Europe’s highest train station at 3454m. The train that chugs up from Kleine Scheidegg ramps up the drama as it delves into Eiger's icy heart to emerge at the Sphinx meteorological station. At the summit, sensational views of the Aletsch Glacier and a never-ending ripple of Alpine peaks unfold. Besides the staggering panorama, there's an Ice Palace and a Snow Fun Park to explore. Warm clothing and sturdy shoes essential.