What do you know about the world famous places of interest?

What do you know about the world famous places of interest? For questions 18, choose the correct answer a or b.
1 nbsp;nbsp;nbsp;a London was started as a fortress by the Romans.
b London was started by the Romans as their northern capital.
2 nbsp;nbsp;nbsp;a St Pauls Cathedral is a big and beautiful church, b St Pauls Cathedral is part of Westminster Abbey.
3 nbsp;nbsp;nbsp;a The Tower of London was founded by William the Conqueror, b The Tower of London was founded by the Romans.
4 nbsp;nbsp;nbsp;a The Tower of London is an important fortress now. b The Tower of London is a museum now.
5 nbsp;nbsp;nbsp;a The White Tower is part of the Tower of London, b The White Tower is part of Westminster Abbey.
6 nbsp;nbsp;nbsp;a Moscow was founded by Russian tsars in 1147.
b Moscow was founded by Prince Yuri Dolgoruky in 1147.
7 nbsp;nbsp;nbsp;a The Moscow Kremlin is older than the city of Moscow, b The Moscow Kremlin is as old as the city of Moscow.
8 nbsp;nbsp;nbsp;a St Petersburg was founded in the seventeenth century, b St Petersburg was founded in 1703,