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?