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Geography Facts
599 facts in Geography. Click any fact to see its full page.
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The world's largest country by area is Russia — covering 17.1 million square kilometers.
The world's highest road is the Marsimik La pass in India at 5,582 meters above sea level.
The longest river in Africa is the Nile at 6,650 km — the Amazon is debated as potentially longer.
The world's largest desert is Antarctica at 14.2 million square kilometers.
The greatest temperature range in a single location — Verkhoyansk, Siberia — ranges from −68°C to +37°C.
The world's longest fence is Australia's Dingo Fence — 5,614 km to protect sheep from dingoes.
The world's deepest cave, Veryovkina in Georgia, descends 2,212 meters below the surface.
The tallest waterfall, Angel Falls in Venezuela, has a continuous drop of 807 meters.
The world's smallest country, Vatican City, covers just 0.44 square kilometers.
The world's largest democracy by population is India — with over 900 million eligible voters.
China's Grand Canal, begun in 486 BC, is the longest artificial waterway in the world at 1,776 km.
Vesuvius last major eruption was in 1944 — it's overdue for another, which threatens 3 million nearby residents.
The world's oldest active volcano may be Mount Etna — with records of eruptions going back 2,700 years.
The 'Ring of Fire' around the Pacific accounts for 75% of Earth's volcanoes.
Stromboli in Italy has been erupting almost continuously for 2,000 years — it's called the 'Lighthouse of the Mediterranean.'
The Deccan Traps volcanic event 66 million years ago lasted 750,000 years and poured out enough lava to cover India twice.
Krakatoa's 1883 eruption was heard 4,800 km away in Australia.
Iceland sits on 30 active volcanic systems and experiences an eruption every 4–5 years on average.
The informal economy in developing countries can employ more people than the formal sector.
The Great Wall of China is not visible from space with the naked eye — this claim was debunked by astronauts.
The Sphinx is estimated to be 4,500 years old — and was carved from a single outcrop of limestone.
The monsoon affects the lives of 1 in 4 people on Earth — through rain patterns across South and East Asia.
The wettest place on Earth is Mawsynram, India — receiving over 11,000 mm of rain annually.
The hottest temperature ever recorded was 56.7°C in Death Valley, California, in 1913.
The Dust Bowl of the 1930s turned 400,000 square km of US farmland into desert through drought and poor farming practices.
The Salton Sea in California was accidentally created in 1905 when an irrigation canal broke — and has been dying ever since.
The Iguazu Falls on the Argentina-Brazil border are wider than Niagara and taller than Victoria Falls.
Niagara Falls moves backward — erosion has moved the falls 11 km upstream over 12,000 years.
The Lena River in Siberia forms one of the world's largest river deltas — and freezes solid each winter.
The Indus River gave its name to India — and supported one of the world's earliest urban civilizations.
The Rio Grande forms the border between the US and Mexico for 2,000 km.
The Niger River bends sharply inland into the Sahara, creating the inland Niger Delta.
The Volga River is the longest river in Europe — and was the highway of the Russian empire.
The Yangtze River in China is the longest in Asia and the third longest in the world.
The Amazon basin produces about 20% of the world's river discharge into the ocean.
Lake Victoria in Africa is the largest tropical lake — and the source of the White Nile.
The Rhine River was so polluted in the 1970s that it caught fire — cleanup efforts have since revived it.
The Danube River flows through more countries than any other river — 10 nations.
Lake Tanganyika in Africa is the second deepest lake in the world at 1,470 meters.
The Yellow River in China is called 'China's Sorrow' — its flooding has killed millions throughout history.
The Missouri River is technically longer than the Mississippi — but joins it before reaching the Gulf.
The Ganges River is considered sacred by Hindus — over 400 million people live in its basin.
The Murray-Darling river system is Australia's longest — and is under severe stress from irrigation overuse.
The Mekong River passes through six countries and supports 60 million people who depend on it for food.
Lake Titicaca, on the Bolivia-Peru border, is the world's highest navigable lake at 3,812 meters.
The Colorado River no longer reaches the ocean in most years — its water is entirely diverted for agriculture and cities.
The Congo River is the deepest river in the world, reaching depths over 220 meters.
The Nile flows north — one of only a handful of major rivers in the world to do so.
The Amazon River has no bridges crossing it — the surrounding jungle and wetlands make construction impractical.
The Sahara desert was once a savanna — 10,000 years ago it was green and habitable.