London

Here's a fun-filled itinerary for 3 days in London that will cater to a teen girl who loves shopping:

Day 1:

• Start your day with a visit to the iconic Buckingham Palace. You can watch the Changing of the Guard ceremony that takes place at 11:00 am.
• After that, head to Oxford Street, which is one of the most popular shopping destinations in London. You'll find a wide range of stores, from high-end luxury brands to affordable high-street fashion.
• For lunch, you can stop by one of the many cafes or restaurants in the area. I recommend trying out Dishoom, a popular Indian restaurant that serves delicious food.
• In the afternoon, you can visit the British Museum, which is home to some of the world's most famous artifacts, including the Rosetta Stone and the Elgin Marbles.
• End your day with a visit to the West End, where you can catch a musical or play at one of the many theaters in the area.

Day 2:

• Start your day with a visit to the Tower of London, which is a historic castle that has served as a royal palace, prison, and fortress over the years.
• After that, head to Covent Garden, which is a popular shopping and entertainment district. You'll find a variety of stores, from independent boutiques to well-known brands.
• For lunch, you can stop by Shake Shack, a popular burger joint that serves delicious burgers and shakes.
• In the afternoon, you can visit the London Eye, which is a giant Ferris wheel that offers stunning views of the city.
• End your day with a visit to Camden Market, which is a vibrant market that sells everything from vintage clothing to street food.

Day 3:

• Start your day with a visit to the Tate Modern, which is a modern art museum that features works by some of the world's most famous artists.
• After that, head to Carnaby Street, which is a popular shopping destination that is known for its unique boutiques and independent stores.
• For lunch, you can stop by Flat Iron, a popular steakhouse that serves delicious steak at affordable prices.
• In the afternoon, you can visit the National Gallery, which is a world-renowned art museum that features works by some of the most famous artists in history.
• End your day with a visit to Harrods, which is a luxury department store that is known for its high-end fashion and accessories.