Sahara, Gobi, Mojave, Atacama
DESERT
What's this?
NORTHEN LIGHTS
What's this?
CANYON
Teide, Etna, Vesuvius, Mauna Loa...
VOLCANO
Niagara, Iguazú, Victoria, Yosemite
WATERFALL
What's this?
CORAL REEF
What's this?
CAVE
The Himalayas, The Alps, The Andes, The Caucasus....
MOUNTAIN RANGE
What's this?
CLIFF
Pacific, Atlantic, Indian...
OCEAN
Vatnajokull, Lambert, Perito Moreno
GLACIER
Baikal, Ness, Victoria
LAKE
What's this?
FOREST
What's this?
RIVER
What's this?
LAKE
Thames, Rhin, Amazon, Nile
RIVER
