London

Here's a suggested itinerary for 4 days in London:

Day 1:

Start your day with a visit to the iconic Tower Bridge. You can walk across the bridge and take in the stunning views of the River Thames. After that, head to the Tower of London, which is just a short walk away. This historic castle has been a royal palace, a prison, and a fortress over the centuries. You can take a guided tour to learn about its fascinating history.

For lunch, head to Borough Market, which is one of the oldest and largest food markets in London. You'll find a wide variety of delicious food options here, from fresh seafood to artisanal cheeses.

In the afternoon, visit the British Museum, which is home to an incredible collection of artifacts from around the world. You can see the Rosetta Stone, the Parthenon sculptures, and many other fascinating exhibits.

Day 2:

Start your day with a visit to the Houses of Parliament and Big Ben. You can take a guided tour of the Houses of Parliament to learn about the history and workings of the British government.

After that, head to Westminster Abbey, which is just a short walk away. This historic church has been the site of coronations, royal weddings, and many other important events throughout British history.

For lunch, head to Covent Garden, which is a bustling shopping and dining district. You'll find plenty of great restaurants and cafes here, as well as street performers and other entertainment.

In the afternoon, visit the National Gallery, which is home to an incredible collection of paintings from around the world. You can see works by artists such as Van Gogh, Monet, and Botticelli.

Day 3:

Start your day with a visit to the Tate Modern, which is a modern art museum housed in a former power station. You can see works by artists such as Picasso, Warhol, and Hockney.

After that, head to the South Bank, which is a vibrant area along the River Thames. You'll find plenty of great restaurants, cafes, and shops here, as well as street performers and other entertainment.

For lunch, head to the nearby Borough Market, which is one of the oldest and largest food markets in London. You'll find a wide variety of delicious food options here, from fresh seafood to artisanal cheeses.

In the afternoon, visit the London Eye, which is a giant Ferris wheel that offers stunning views of the city. You can take a ride on the London Eye and see the city from a whole new perspective.

Day 4:

Start your day with a visit to the British Library, which is home to an incredible collection of books and manuscripts. You can see original copies of works such as the Magna Carta and Shakespeare's plays.

After that, head to Camden Market, which is a vibrant shopping and dining district. You'll find plenty of great restaurants, cafes, and shops here, as well as street performers and other entertainment.

For lunch, head to the nearby Regent's Park, which is a beautiful park with plenty of green space and walking paths. You can have a picnic or grab a bite to eat at one of the park's cafes.

In the afternoon, visit the Tower of London, which is a historic castle that has been a royal palace, a prison, and a fortress over the centuries. You can take a guided tour to learn about its fascinating history.