Answer: London
Some extra relevant information:
The largest city in the UK by area is London. With a total area of approximately 1,572 square kilometers, London is not only the most populous city in the UK but also the most extensive in terms of geographical coverage. It is home to numerous iconic landmarks, diverse cultural attractions, and a thriving metropolitan lifestyle. From its historic sites like the Tower of London and Buckingham Palace to its vibrant neighborhoods such as Camden and Shoreditch, London offers a rich blend of history, modernity, and diversity to both residents and visitors.