The capital of the United Kingdom is London. As one of the world's major financial and cultural centers, London has a rich history dating back to Roman times. It is home to numerous iconic landmarks, such as the Houses of Parliament, Buckingham Palace, the Tower of London, and the British Museum. The city's diverse population and culture make it a melting pot of ethnicities and traditions, with a wide array of theaters, galleries, and restaurants, contributing to its global significance.