When a writer describes a place, he tries to create a picture in words so that the reader can see the picture clearly. Therefore, the topic sentence should introduce the place and say something interesting and important about the place. It should tell the writer's dominant impression of the place he/she is describing.
. Also, a good to topic sentence should neither be too broad nor specific. If it
is too broad, there-will be too much to write about and the writer will need more than one paragraph. If it is too specific, there will be nothing to write about.