1. Insulele Pitcairn
1. Insulele Pitcairn
2. Namibia
2. Namibia
3. Insula Surtsey
3. Insula Surtsey
4. Peștera Son Doong
4. Peștera Son Doong
5. Insula Santinelei de Nord
5. Insula Santinelei de Nord
6. Vale do Javari
6. Vale do Javari
7. Gangkhar Puensum
7. Gangkhar Puensum
8. Antarctica
8. Antarctica
9. Insula Devon
9. Insula Devon
10. Groenlanda
10. Groenlanda
11. Râul Salween
11. Râul Salween
12. Insula Palmerson
12. Insula Palmerson