地質学的な驚異
Feels like the Grand Canyon
Hawaii - Kauai Island,United StatesThe spring water tastes very good
Heihe,ChinaThe stalactites inside the cave are very beautiful
Pingxiang,ChinaCave landscape
Baoding,ChinaThe Difflugia Canyon has many cone-shaped rock layers
Goreme,TurkeyOne of the attractions in the Golden Circle
Reykjavik,Iceland1