Switzerland is divided into 26 regions known as cantons. Each canton has its own constitution, government, and laws, allowing for a high degree of autonomy. The cantons vary in size, population, and culture, reflecting the country's diverse linguistic and ethnic backgrounds. The cantons are grouped into three main language regions: German, French, and Italian. Some well-known cantons include Zurich, the largest city, and Geneva, known for its international organizations. This unique structure contributes to Switzerland's stability and democratic governance, making it a model of federalism.