What are these places?

• Объекты 1
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• Объекты 2
  • It is a historic building. It was a fortress, a prison, a Zoo and a royal palace. Now it is a museum.
  • It is an official residence of Elizabeth II.
  • It is in Regent's Park. There are a lot of species of animals.
  • It is the name of the bell, not the clock.
  • It is the largest park. It was a hunting forest. There is the river Serpentine.