What are some recommended activities to make the most of a 9-hour layover in London?

During a 9-hour layover in London, some recommended activities include visiting iconic landmarks like Big Ben, Buckingham Palace, and the Tower of London. You can also explore the vibrant neighborhoods of Covent Garden and Camden Market, or take a ride on the London Eye for panoramic views of the city. Additionally, you can enjoy a traditional English afternoon tea or sample local cuisine at Borough Market. Be sure to plan your time wisely and consider transportation options to make the most of your layover.