Zürich is the largest city in Switzerland and the capital of the canton of Zürich. It is located in north-central Switzerland, at the northwestern tip of Lake Zürich. As of January 2023 the municipality had 443,037 inhabitants, the urban area 1.315 million (2009), and the Zürich metropolitan area 1.83 million (2011). Zürich is a hub for railways, roads, and air traffic. Both Zurich Airport and Zürich's main railway station are the largest and busiest in the country.

Zürich Hauptbahnhof is the largest railway station in Switzerland and one of the busiest in Europe. Zürich is a major railway hub, with services to and from across Switzerland and neighbouring countries such as Germany, Italy, Austria and France. The station was originally constructed as the terminus of the Spanisch Brötli Bahn, the first railway built completely within Switzerland. Serving up to 2,915 trains per day, Zürich HB is one of the busiest railway stations in the world. It was ranked as the second-best European railway station in 2020.