London, Britain's capital, has been around for nearly 2,000 years and today is still one of the most important cities in the entire world. At one time, approximately 1/5 of the world’s population was ruled from London, the headquarters of the British Empire. With its beautiful architecture, world-class museums, royal history and population made up of a huge number of different cultures, this metropoli is up amongst the world’s greatest travel destinations. In addition to the landmarks, London is known for its excellent bars and nightlife, which is spread all over the city rather than just in one neighbourhood. Bars in London are plenty in number, ranging from cheap, dusty dive bars to expensive, upscale drinking establishments.