Yeah, there's plenty of things to do in London. There are the tombs of the Kings and Queens of England at Westminster Abbey, as well as some other famous people at St. Paul's Cathedral, and the Changing of the Guard at Buckingham Palace.
In terms of food, if you looking for great quality food that's enough to refuel you for the rest of your day and really great value for money, you cannot beat the Little Bay restaurant on Farringdon Road, open from Midday to Midnight every day.

