Copenhagen

Copenhagen is the capital and most populous city of both the country of Denmark and the wider Kingdom of Denmark, with a population of 667,000 people in the municipality and 1.4 million in the urban area. The city is situated mainly on the island of Zealand (Sjælland), with a smaller part on the island of Amager. Copenhagen is separated from Malmö, Sweden, by the Øresund strait. The Øresund Bridge connects the two cities by rail and road.Wikipedia

A capital region, also called a capital district or capital territory, is a region or district surrounding the country's capital city. It is not always the official term for the region, but may sometimes be used as an informal synonym. Capital regions can exist for either national or subnational capitals.Wikipedia