The best travel itinerary for London would depend on the traveler's interests, time frame, and budget. Some popular places to visit in London include:

• The Tower of London

• Buckingham Palace

• The British Museum

• Big Ben and the Houses of Parliament

• St. Paul's Cathedral

• The National Gallery

• Camden Market

• Hyde Park

• The West End for theater shows

It is recommended to prioritize the must-visit places and plan accordingly, considering the time and budget constraints. One can also book tours, hop-on-hop-off bus tours, or use public transportation to maximize the experience.