Mount Everest is not the tallest mountain from base to peak
Mauna Kea in Hawaii rises about 10,200 m from the sea floor, more than Everest’s 8,849 m — most of Mauna Kea is simply under water.
More geography facts
See all →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.
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 →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.
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