London

1. London Eye

1.1. Ferris Wheel

2. Big Ben

2.1. the Houses of Parliament

2.2. the Elisabeth Tower

3. Buckingham Palace

3.1. Royal Palace

3.2. Queen Elisabeth II

3.3. flag Union Jack

4. Transport

4.1. plane

4.1.1. Heathrow airport

4.2. black taxi

4.3. doubledecker

4.4. train

4.4.1. the Tube

5. Tower Bridge

5.1. two towers

5.2. glass floor

6. Sports

6.1. Cricket

6.2. Football

6.2.1. Wembley

6.2.2. Arsenal

6.2.3. Chelsea

6.3. Rugby