4
2
1
3
Dunhuang Mogao Grottoes
Longmen Grottoes
Yungang Grottoes
Xumishan grottoes
Rome
Brazil
Egypt
Ethiopia
France
Quito
Kunming
Santiago
Sydney
Brazil Plateau
Antarctic Ice and Snow Plateau
Ecuador Plateau
Ethiopia Plateau
Kumukuri Desert
Patagonian Desert
Arabian desert
Australian Desert