Great Britain is the largest island in Europe, it consists of England, Scotland and Wales and together with Northern Ireland it forms the United Kingdom of Great Britain and Northern Ireland which is the official title of the country. England is the largest part of Great Britain,. Wales is in the west and Scotland is in the north. Northern Ireland is located in the northeast corner of Ireland, the second largest island in the British Isles. Great Britain covers the total area of about 90,000 square miles.