The Okavango Delta
Yardang (Kalut) in the Lut Desert
Namib Sand Sea
Bilutu megadunes and lakes in the Badain Jaran Desert
Vajont landslide
Pamukkale Travertines
Puquios of the Llamara salt flat
Škocjan Caves in the Classical Karst
Sac actun underwater cave system
Domo de Araguainha Impact Structure