Across
- 2. The colossal canyon in Arizona.
- 6. The extensive wetland in South America.
- 7. The breathtaking fjord in Norway.
- 11. The mystical forest in Romania.
- 14. The arid desert in Africa.
- 16. The unique salt flats in Bolivia.
- 17. The iconic mountain range in Europe.
Down
- 1. The magnificent waterfall on the border of the United States and Canada.
- 2. The world's largest coral reef system off the coast of Australia.
- 3. The vast rainforest in South America.
- 4. The ancient stone circle in England.
- 5. The volcanic island nation in the Pacific Ocean.
- 7. The deep gorge formed by the Colorado River.
- 8. The massive ice sheet in Antarctica.
- 9. The stunning archipelago in Indonesia.
- 10. The geothermal park in New Zealand with colorful pools.
- 12. The extensive system of caves in New Mexico.
- 13. The lush valley in California known for its wine.
- 15. The mesmerizing blue hole in Belize.
- 16. The impressive rock formation in Australia's Northern Territory.