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11,491 facts. Click any fact to see its full page.
All 11,491
📜 History 1,991
🔬 Science 1,964
🐾 Animals 1,525
🚀 Space 977
🧠 Psychology 893
🌿 Nature 759
💻 Technology 735
🌍 Geography 599
🎭 Culture 581
🫀 Human Body 572
🌊 Ocean 373
💬 Language 245
🍕 Food 199
✨ General 68
✨ Dinosaur 10
The Three Gorges Dam spans the Yangtze River.
The Brooklyn Bridge required innovative caisson construction.
The International Space Station orbits Earth every 90 minutes.
The High Dam of Aswan created Lake Nasser.
The Sydney Harbour Bridge is one of the largest steel arch bridges.
The Channel Tunnel required underwater tunneling through chalk marl.
The Shanghai Maglev train reaches extremely high speeds.
The Burj Al Arab is built on an artificial island.
The Gotthard Base Tunnel is one of the longest railway tunnels in the world.
The Panama Canal uses a system of locks to lift ships.
The CN Tower in Toronto was once the tallest free-standing structure.
The ancient Roman aqueducts transported water over long distances.
The Colosseum in Rome demonstrates advanced ancient engineering.
The Statue of Liberty was engineered with an internal iron framework.
The Tokyo Skytree is one of the tallest towers globally.
The Golden Gate Bridge spans the entrance to San Francisco Bay.
The Chunnel carries both passenger and freight trains.
The Aswan High Dam controls flooding of the Nile River.
The Petronas Towers were once the tallest buildings in the world.
The Itaipu Dam is one of the largest hydroelectric projects in operation.
The Akashi Kaikyō Bridge in Japan is one of the longest suspension bridges.
The Sydney Opera House features a distinctive shell-like design.
The Millau Viaduct in France is one of the tallest bridges in the world.
The Eiffel Tower was once the tallest man-made structure on Earth.
The London Underground is one of the oldest metro systems in the world.
The Palm Islands in Dubai were constructed using land reclamation techniques.
The Brooklyn Bridge was one of the first steel-wire suspension bridges.
The Suez Canal significantly reduced travel time between Europe and Asia.
The Trans-Siberian Railway is one of the longest railway lines in the world.
The Empire State Building was completed in just over a year.
The Three Gorges Dam is one of the largest hydroelectric dams in the world.
The International Space Station is one of the most complex engineering projects ever built.
The Hoover Dam generates hydroelectric power for millions of people.
The Golden Gate Bridge was completed in 1937.
The Burj Khalifa is the tallest building in the world.
The Channel Tunnel links the United Kingdom and France beneath the English Channel.
The Panama Canal connects the Atlantic and Pacific Oceans.
The Great Wall of China stretches over 13,000 miles.
The cognitive dissonance theory explains discomfort from conflicting beliefs.
The door-in-the-face technique uses large requests to gain smaller agreements.
The foot-in-the-door technique increases compliance gradually.
The paradox of choice suggests too many options reduce satisfaction.
The social facilitation effect improves performance in groups for simple tasks.
The empathy gap refers to difficulty understanding different emotional states.
The backfire effect describes resistance to contradictory information.
The confirmation bias affects how evidence is interpreted.
The learned helplessness theory explains passivity after repeated failure.
The Stanford marshmallow experiment studied delayed gratification.
The inattentional blindness phenomenon can hide obvious stimuli.
The checker shadow illusion alters perception of color brightness.