Here are some country powerpoints, some with quizzes. Quick intros to countries. Also see these World Nations ebooks Canada America Spain USA.
Some more ppts about Continents. North America Europe and Asia
Here are some great books and materials/worksheets on the topic of "Wonders of the World".
4. Life is beautiful- a unique take on "wonders of the world". Use with the brainstorming sheet attached and then share results and play book presentation. Do students agree?