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11,491 facts. Click any fact to see its full page.
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📜 History 1,991
🔬 Science 1,964
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🧠 Psychology 893
🌿 Nature 759
💻 Technology 735
🌍 Geography 599
🎭 Culture 581
🫀 Human Body 572
🌊 Ocean 373
💬 Language 245
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✨ General 68
✨ Dinosaur 10
The Ko'olau Mountain Range on Oahu has the world's tallest sea cliffs — some reach over 900 meters.
Each year, the monsoon season in South Asia affects the lives of over 1.5 billion people.
The Pantanal in South America is the world's largest tropical wetland area, covering up to 195,000 square kilometers.
Indonesia is the world's largest archipelago nation, stretching across over 17,000 islands.
The Philippines consists of 7,641 islands, but most of the population lives on just 11 of them.
The Strait of Gibraltar separating Europe and Africa is only 14 km at its narrowest point.
Canada has more lakes than the rest of the world combined, holding about 9% of the world's fresh surface water.
More than 80% of the world's oceans remain unmapped and unexplored.
The Himalayas are still growing by about 5 mm per year as the Indian subcontinent continues to collide with Eurasia.
Death Valley in California holds the record for the highest reliably recorded air temperature: 56.7°C in 1913.
The deepest lake in the world, Lake Baikal, is also the oldest at around 25 million years.
Lake Titicaca, on the border of Peru and Bolivia, is the highest navigable lake in the world at 3,812 meters.
The Ring of Fire around the Pacific Ocean hosts 75% of Earth's volcanoes and 90% of its earthquakes.
The Amazon rainforest produces about 20% of the world's oxygen and is sometimes called the 'lungs of the Earth.'
Australia is wider than the Moon — the continent spans about 4,000 km coast to coast.
The Gobi Desert is the fastest-expanding desert in the world and covers parts of northern China and southern Mongolia.
The Maldives is the world's lowest-lying country, with an average ground level of just 1.5 meters above sea level.
Greenland is the world's largest island and is covered by an ice sheet containing 10% of the world's fresh water.
Angel Falls in Venezuela is the world's highest uninterrupted waterfall at 979 meters.
Venice, Italy is built on 118 small islands connected by over 400 bridges and is slowly sinking.
The permafrost of Siberia locks away more carbon than is currently in Earth's atmosphere.
The Great Rift Valley in Africa may eventually split the continent in two, forming a new ocean in millions of years.
About 71% of Earth's surface is covered by water, but 97.5% of that is saltwater.
The world's largest cave, Son Doong in Vietnam, is so big it has its own weather system including clouds and jungle.
Mount Etna in Sicily is Europe's most active volcano and has been erupting continuously for at least 2,700 years.
The Ganges Delta is the world's largest river delta, covering over 100,000 square kilometers.
The Atacama Desert in Chile is so dry that some weather stations there have never recorded rain.
New Zealand was one of the last large landmasses to be settled by humans, around 1250–1300 AD.
Iceland sits directly on the Mid-Atlantic Ridge and is actually spreading by 2.5 cm per year as two tectonic plates diverge.
The Nile is generally considered the world's longest river, but some measurements put the Amazon ahead depending on source point.
Russia spans 11 time zones and is so wide that the sun is setting in the west as it rises in the east.
The Caspian Sea is technically the world's largest lake, covering 371,000 square kilometers.
There are more pyramids in Sudan than in Egypt — the Nubian pyramids number over 200.
The Sahara Desert is expanding southward at a rate of about 48 kilometers per year due to desertification.
The Dead Sea is so salty that nothing larger than bacteria can survive in it, and swimmers float effortlessly.
Antarctica is technically a desert — it receives less precipitation than the Sahara in many areas.
The Amazon River discharges more water into the ocean than the next seven largest rivers combined.
Lake Baikal in Russia contains about 20% of the world's unfrozen surface freshwater.
The Mariana Trench is so deep that Mount Everest could be submerged in it with over a mile to spare.
Mount Everest is not the closest point to space — that title goes to Mount Chimborazo in Ecuador due to Earth's equatorial bulge.
The Pacific Ocean is larger than all of Earth's landmasses combined.
The world's most precise clocks, optical lattice clocks, lose less than one second every 15 billion years.
The pH scale is logarithmic — a solution with a pH of 2 is 10 times more acidic than one with a pH of 3.
Color is not a property of objects but a perception created by the brain interpreting reflected wavelengths of light.
Quasicrystals are materials with patterns that don't repeat but never tile the same way twice, defying classical crystallography.
Oobleck (cornstarch and water) is a non-Newtonian fluid — it flows like a liquid but becomes solid under sudden impact.
The melting point of gallium is so low it melts in the palm of your hand at about 30°C.
A supernova explosion can briefly outshine an entire galaxy of hundreds of billions of stars.
The electric eel isn't a true eel — it's more closely related to carp and catfish.
The chemical formula for water, H₂O, means each molecule has exactly two hydrogen atoms and one oxygen atom.