Standing on the Thames River, London is the capital of England as well as the most populous city in Great Britain. The city is a confluence of the old and the new and is one of the most important tourist destinations in the entire world. London attracts over 15.3 million international tourists in a year. The numerous attractions in the city like the London Eye, Big Ben, Houses of Parliament, Westminster’s Abbey and Nelson’s Column attract a large number of visitors. The Shard in London is the tallest building in the city. There are various museums and art galleries in London which preserve the heritage and culture of the immensely rich historic city.