These vast wildernesses of natural ice formations continue to beguile visitors every year. While the best glacier skiing is at the car-free Saas-Fee resort or Engelberg—whose revolving cable car was a world’s first—for that unique, unforgettable experience head to Glacier 3000 in Les Diablerets, Vaud. The less daring take a snow cat or dog-led sleigh across the plateau, others hike to the edges of the precipices looking down on the rest of the world. The glacier is also home to the world’s highest rollercoaster. This one-seated toboggan hurtles around corners and dips drastically, imitating the sensation of freefalling across the icy surface at bone-shaking high speed.