FILE 001Geography🌋supervolcanoYellowstone sits on a supervolcano that erupts roughly every 600,000 years. The last eruption was 640,000 years ago.SrcUSGSPass the claimOpen file
FILE 002Geography🌍Sharelongest riverThe Nile and the Amazon compete for the title of longest river. The Nile is traditionally cited at 4,130 miles, but recent surveys suggest the Amazon may be longer.SrcNational Geographic
FILE 003Geography🌊Sharelargest lake in the worldThe Caspian Sea is the largest lake in the world by area — despite being called a "sea."SrcNational Geographic
FILE 004Geography🌍Sharethe entire United StatesThe Sahara Desert is almost the same size as the entire United States.SrcNational Geographic
FILE 005Geography🗺️Sharefarthest point from any land on EarthPoint Nemo in the Pacific is the farthest point from any land on Earth — the nearest humans are often astronauts on the ISS overhead.SrcNOAA
FILE 006Geography🗺️Share11 time zonesRussia spans 11 time zones — when it's midnight in Moscow, it's already 9 AM the next day in Kamchatka.SrcNational Geographic
FILE 007Geography🌍Sharetwo continentsIstanbul is the only city in the world that sits on two continents — Europe and Asia, split by the Bosphorus strait.SrcNational Geographic
FILE 008Geography🏝️Sharelargest islandGreenland is the world's largest island (if you don't count Australia as a continent). About 80% of it is covered by an ice sheet.SrcNational Geographic
FILE 009Geography🗺️Sharetwo countries in the world that are doubly landlockedThere are only two countries in the world that are doubly landlocked (surrounded by landlocked countries): Liechtenstein and Uzbekistan.SrcCIA World Factbook
FILE 010Geography🏔️Share4 millimeters taller every yearMount Everest grows about 4 millimeters taller every year due to tectonic forces pushing it upward.SrcNational Geographic
FILE 011Geography🏔️Sharefarthest point from Earth's centerChimborazo in Ecuador is the farthest point from Earth's center — farther than Everest's summit because of Earth's equatorial bulge.SrcNOAA
FILE 012Geography🌊Sharefrom spaceThe Great Barrier Reef is so large it can be seen from space — it stretches over 1,400 miles along Australia's coast.SrcNASA
FILE 013Geography🌊Sharemore area than all land on Earth combinedThe Pacific Ocean is so big that it contains more area than all land on Earth combined.SrcNOAA
FILE 014Geography🏔️Sharefree-standing mountainMount Kilimanjaro is the tallest free-standing mountain in the world — it rises about 16,000 feet from the surrounding plain.SrcNational Geographic