A preparatory year is a specialized academic program designed to help students prepare for their first year of college or university. The preparatory year was created to help students make a smooth transition from high school to college.
Switzerland (German: Schweiz, French: Suisse, Italian: Svizzera, Romansch: Svizra. Switzerland has some of the world renown universites like ETH in Zurich, EPFL in Lausanne, IHEID in Geneva, University of Lausanne or the University of St. Gallen. Keep in mind, it's much better to speak the local language, so if you can't speak either French, German or Italian, better go for a language course first.
Geneva is known for diplomacy. That’s probably why their university is specialized in humanist sciences, with the addition of medicine. Private university, institutes and private schools are also specialized in laws, political science, international affairs, history etc.
See Preparatory Year Programs in Geneva in Switzerland 2018