Moodle will allow you to include images and even videos in quizzes. So, you can easily paste a map into a quiz question. You can then use drag and drop matching to have students match coordinates. I'm not sure what grade level you teach, but you can have students match cities and states or match leaders with their appropriate country, etc. using the drag and drop matching feature. One word of caution is that the Internet Explorer browser does not always work with that question type. You might want to recommend that your students use Firefox or Chrome for the best result.