The Sahara was green 6,000 years ago
During the African Humid Period the Sahara had lakes, rivers, grassland and hippos. Rock paintings there show people swimming and herding cattle.
More geography facts
See all →Russia spans 11 time zones
From Kaliningrad in the west to Kamchatka in the east, a traveller crossing Russia would reset their watch eleven times.
Read the fact →Africa is the only continent in all four hemispheres
It straddles the equator and the prime meridian, so it has land in the northern, southern, eastern and western hemispheres.
Read the fact →India’s Mawsynram is the wettest place on Earth
This village in Meghalaya receives about 11,870 mm of rain a year on average — more than ten times what London gets.
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