1. Which narrow body of water divides the city of Istanbul into European and Asian halves?

2. Which city served as the capital of Brazil before it was moved to Brasília in 1960?

3. What is the name of the historic palace in Lhasa that was the winter residence of the Dalai Lama?

4. Singapore is located at the southern end of which peninsula?

5. Which mountain range covers the majority of Switzerland's territory?

6. What is the primary reason Ireland is nicknamed the 'Emerald Isle'?

7. Panama serves as a land bridge (isthmus) between which two continents?

8. Cuba is located at the entrance of which large body of water?

9. Rwanda is world-famous for being one of the few places where you can see which endangered primate in the wild?

10. Which African country has the longest coastline on the continent's mainland?

11. The Continental Divide of North America primarily runs through which mountain range?

12. How many meters are ships lifted above sea level to cross through the Panama Canal's Gatun Lake?

13. What is the name of the narrowest part of the Malay Peninsula located in Thailand?

14. Which sea borders Croatia's famous coastline and thousands of islands?

15. Which waterway separates the European and Asian parts of the city of Istanbul?

16. Which spectacular single-drop waterfall is a major natural landmark of Guyana?

17. Which island is the most populous in Indonesia and the world?

18. The Dead Sea is bordered by which two primary countries?

19. What is the name of the phenomenon where two different colored rivers flow side-by-side in Manaus?

20. What is the name of the longest and deepest fjord in Norway?