It is also the only Great Lake located entirely in the United States. Lake Ontario: Ontario is the Huron word for lake of shining water. This lake is the smallest of all the Great Lakes when measured in surface area (7,340 square miles / 18,960 square km).
The Swiss franc (CHF) is the only official currency in Switzerland (and in Liechtenstein). The franc is the only currency accepted everywhere. The Euro is the currency in the neighboring countries Germany, France, Italy and Austria, and in many other European countries. Nevertheless, you can pay with Euros in many shops, hotels, rail stations and gas stations in Switzerland. This is convenient if you're only in transit or only stay for one night.
Visa and non-visa nationals [edit]. Citizens of the European Economic Area (EU, Iceland, Norway and Liechtenstein) and Switzerland only require a valid national identity card or passport and do not need a visa for the Schengen Area, and are generally allowed to stay for as long as they want. Schengen visa and visa-free travel to the Schengen area (for eligible non-EEA or Swiss nationals) is valid for only short stays (those that are 90 days or less within a 180-day period).