4-Day City Experience Itinerary in London, UK

1. Day 1: Exploring the Historical Sites of London
   Starting at Buckingham Palace.
   10:00am – Tour Buckingham Palace and watch the Changing of the Guard (2 hours).
   12:30pm – Visit Westminster Abbey (2 hours).
   3:00pm – Explore Houses of Parliament and Big Ben (1 hour).
   5:00pm – End the day with a stroll along the Thames (1 hour).
2. Day 2: Art Galleries and Museums
   Start at the National Gallery.
   10:00am – Discover the National Gallery (2 hours).
   12:30pm – Learn about British history at the British Museum (2 hours).
   3:00pm – Visit the Tate Modern for contemporary art (2 hours).
   5:30pm – Grab dinner at Borough Market (1 hour).
3. Day 3: London's Iconic Views
   Start at St. Paul's Cathedral.
   10:00am – Climb to the top of St. Paul's Cathedral for panoramic views (2 hours).
   12:30pm – Take a stroll across the Millennium Bridge to access The Shard (1 hour).
   2:00pm – Take in the skyline view from The Shard's viewing platform (2 hours).
   5:00pm – End the day with a visit to the Tower Bridge (1 hour).
4. Day 4: Shopping and Street Food
   Start at Oxford Street.
   10:00am – Shop along Oxford Street (2 hours).
   12:30pm – Lunch at Camden Market (1 hour).
   2:00pm – Explore the vibrant area of Soho (2 hours).
   4:30pm – Wind down with a visit to Covent Garden (1 hour).

Time and Cost Estimates

• Buckingham Palace (2 hours, £26 per adult)
• Westminster Abbey (2 hours, £23 per adult)
• Houses of Parliament and Big Ben (1 hour, free entry)
• National Gallery (2 hours, free entry)
• British Museum (2 hours, free entry)
• Tate Modern (2 hours, free entry)
• Borough Market (1 hour, £10-15 for a meal)
• St. Paul's Cathedral (2 hours, £20 per adult)
• The Shard (2 hours, £32 per adult for viewing platform)
• Tower Bridge (1 hour, £10.60 per adult)
• Camden Market (1 hour, £10-15 for a meal)
• Covent Garden (1 hour, free)

Total Estimated Costs: £164.60 per adult

Useful Tips

For those with more time, consider visiting Kew Gardens, The Warner Bros. Studio Tour, or a show in the West End. On the other hand, if time is limited, shorten visits to 1 hour each in the museums or choose only one museum or gallery to explore. Don't forget to wear comfortable walking shoes!