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1 Where is the Royal Observatory situated?

2 What is it famous for?

3 What line can visitors see on the courtyard floor at the Royal Observatory?

4 How is world time calculated?

5 Was the Royal Observatory set up in 1565 or 1675?

6 Why did they set it up?

7 Were clocks accurate three hundred years ago?

8 What does the meridian divide the globe into?

9 What kind of photographs do visitors to the Royal Observatory often have?

10 Is there a planetarium at the Royal Observatory?