The Netherlands, also known informally as Holland, is a country in Western Europe with a population of seventeen million. It is the main constituent country of the Kingdom of the Netherlands, which is further comprised of three island territories in the Caribbean: Bonaire, Sint Eustatius and Saba. The European portion of the Netherlands consists of twelve provinces and borders Germany to the east, Belgium to the south, and the North Sea to the northwest, sharing maritime borders in the North Sea with Belgium, the United Kingdom, and Germany. The five largest cities in the Netherlands are Amsterdam, Rotterdam, The Hague, Utrecht and Eindhoven. Amsterdam is the country's capital, while The Hague holds the seat of the States General and cabinet. The Port of Rotterdam is the largest port in Europe and the world's largest outside East Asia.
"Netherlands" literally means "lower countries", influenced by its low land and flat geography, with only about 50% of its land exceeding one metre above sea level. Most of the areas below sea level are artificial.