1. No, the city is not smaller than the town. It is bigger.
2.Tower Bridge is one of the most famous bridges in the world.
It is one of the most famous bridges in London and Great Britain
3.There are no trees in our villag/town.
There are a lot of trees in our village/town
4.Villages usually are not noisy. (agree)
5.Towns usually are smaller than cities and bigger than villages. (agree)
6.Big Ben is one of the most famous churches in the world.
Big Ben is one of the most famous clocks in the world
7.The London Zoo is one of the largest zoos in the world.
It is not the largest in size but it is the oldest among all public Zoos in the world