1. Which U.S. city is known as the “Windy City”?

2. In which state is the geographic center of all 50 U.S. states located?

3. Which nation is the only one in the world to be located in all four hemispheres?

4. Which country is currently the most populous landlocked nation in the world?

5. The northernmost point of Africa is located in which country?

6. Which major world city is located on two different continents?

7. Besides France and Spain, which country has coastlines on both the Mediterranean Sea and the Atlantic Ocean?

8. What is the 'Federal City' (de facto capital) of Switzerland?

9. Which sea is currently widening due to tectonic plates pulling apart, eventually forming a new ocean?

10. Due to its territories, France is situated in how many hemispheres?

11. What is the approximate length of the world's shortest land border, located at Peñón de Vélez de la Gomera?

12. Angel Falls, the tallest waterfall in the world, is located in which South American country?

13. Hydrologically, which two Great Lakes are actually a single body of water?

14. The Danube River flows through how many national capital cities?

15. Which continent has a permanent human population of zero?

16. What is the largest island in the world that is NOT a continent?

17. What is the largest landlocked country in the world?

18. Which Pacific island nation is the only one to be situated in all four hemispheres?

19. Which sea is unique for having no land boundaries, being defined only by ocean currents?

20. What is the name of the world's largest sand island, located in Australia?