The United Kingdom of Great Britain (which includes England, Scotland, and Wales) and Northern Ireland has 12,429 kilometres of heavily indented coastline. This means that no location in the country is ever more than 125 kilometres away from tidal waters. The UK lies only 35 kilometres away from the European mainland and is linked to France by a tunnel under the English Channel. The countryside features level to rolling plains in east and southeast and rugged hills and low mountains to the west and north. Apart from the natural attractions, the UK has a plethora of old castles and ruins from its varied history. There are also many great cities, especially London. The United Kingdom is also well known around the world for their royal family. Dating back over ten centuries, the Monarchy plays an important?role in the UK and Commonwealth.This is United Kingdom.