In the cities and countryside section of Busy Teacher, there are 137 FREE worksheets to choose from. They range from very simple word searches to detailed activities related to these topics. This activity, for example, was created for Russian ESL learners but can serve as a model for you to create a similar activity more appropriate for your students. Some nice details on this worksheet include the translations of important words, the colorful images, and the fact that after completing this exercise, students should be able to create a similar article about the town they live in. You could do this as a class, in groups, or individually depending on your students and class size. Take a look at other worksheets to find something your students will enjoy.
It is good to talk about different places, compare them, and be able to describe them to people. Students will enjoy sharing their views of certain locations and some will certainly feel very strongly about cities while others will prefer the countryside. This division could set you up for a debate about the positive and negative characteristics of each. Despite your personal opinion, try to remain neutral and simply facilitate the discussion. This is just one way to incorporate this topic into your lessons.