The United Kingdom of Great Britain and Northern Ireland is a sovereign country located in western Europe. As a collection of islands, the nation benefits from diverse landscapes and even a diversity of different cultures, bonded together by British identity. It is located off the coast of Europe and is the 78th largest sovereign state worldwide, as well as the 21st most heavily populated country. The UK has a long history, including everything from Kings and Queens to the Industrial Revolution, the British Empire and the 2012 Olympic Games. It has produced some of the worlds most noted artists, scientists and businesses, and hosts many others from around the world. Millions of tourists flock to see the UK's landmarks, including Buckingham Palace, the Houses of Parliament and Big Ben.