United Kingdom GuideThe United Kingdom of Great Britain and Northern Ireland is a constitutional monarchy comprising most of the British Isles. The Union comprises four constituent nations: England, Scotland, Wales, and Northern Ireland. HotelsFind hotels in London, Edinburgh, Manchester, Glasgow and more. LondonNoisy, vibrant and truly multicultural, London is a megalopolis of people, ideas and frenetic energy. EdinburghEdinburgh is the capital of Scotland located in the Central Belt region of the country. EnglandEngland is the largest of the four "home nations" that make up the United Kingdom. ScotlandScotland is a country in north-western Europe, one of the constituent countries of the United Kingdom. WalesWales is one of the countries that make up the United Kingdom. Rich in history and natural beauty, Wales has a living Celtic culture distinct from the rest of the UK. Northern IrelandNorthern Ireland is located on the island of Ireland and is one of the four constituent nations of the United Kingdom.