Across
- 3. World's highest waterfall
- 8. Ancient Incan citadel
- 10. Capital of Greece
- 11. Artificial waterway connecting the Atlantic and Pacific Oceans
- 13. Highest mountain range in the world
- 14. Iconic performing arts center in Sydney, Australia
- 18. Largest city in the United States
- 19. Largest river in South America
- 23. World's deepest and oldest freshwater lake
- 25. Largest ocean on Earth
- 26. Iconic landmark in Paris, France
- 27. Earth's highest mountain
- 29. Longest river in the world
- 30. Africa's highest peak
Down
- 1. Waterfall on the Zambezi River in southern Africa
- 2. Brazilian city famous for its beaches
- 4. Europe's highest mountain range
- 5. Iconic volcano in Japan
- 6. World's largest hot desert
- 7. Largest lake in Africa by area
- 8. Volcano famous for destroying Pompeii
- 9. Sacred river in India
- 12. Longest continental mountain range in the world
- 15. Coastal seaport city in Canada
- 16. Earth's southernmost continent
- 17. Capital city of Australia
- 20. City in Turkey that straddles Europe and Asia
- 21. World famous city in the UAE
- 22. Capital city of Argentina
- 24. Ancient citadel located in Athens, Greece
- 28. Massive gorge in Arizona, USA