Russia spans both Europe and Asia. Its Asian portion alone is ~13 million km². China is the largest entirely-Asian country at 9,596,960 km².

298 km² — a low-lying island nation in the Indian Ocean with an average elevation of just 1.5 m above sea level.

8,848.86 m — on the Nepal–Tibet border. The highest point on Earth's surface.

1,642 m deep — in Siberia, Russia. Contains ~20% of the world's unfrozen fresh surface water.

~1.44 billion people — surpassed China in 2023 to become the world's most populous nation.

−430 m below sea level — on the Jordan–Israel border. The saltiest large body of water on Earth.

603,550 km² — the largest country entirely within Europe. (Russia is larger but is transcontinental.)

0.44 km² — the smallest country in the world by both area and population, located inside Rome, Italy.

4,808 m — on the French-Italian border in the Alps. The highest peak in the Alps and in Western Europe.

3,531 km — flows entirely within Russia, draining into the Caspian Sea. Europe's longest river.

Germany is the most populous country entirely in Europe, with ~84 million people.

~100,000 km of coastline (including fjords and islands) — more than any other European country.

9,984,670 km² — the world's second-largest country by area. Has the world's longest coastline at ~202,080 km.

261 km² — a two-island nation in the Caribbean. The smallest sovereign state in the Americas.

6,190 m — in Alaska, USA. The highest peak in North America and all of the Arctic.

3,767 km — slightly longer than the Mississippi, though both are part of the same river system.

~335 million people — the world's 3rd most populous country and home to the world's largest economy.

On the US–Canada border. Niagara Falls has the highest flow rate of any waterfall in the world — ~2,400 m³/s.

8,515,767 km² — the world's 5th largest country. Covers nearly half of South America's total land area.

163,820 km² — the smallest sovereign state in South America, located on the northeastern coast.

6,961 m — in Argentina. The highest peak in both the Western and Southern Hemispheres.

979 m — in Venezuela. The world's highest uninterrupted waterfall, nearly 20× the height of Niagara Falls.

In Chile. Some areas have never recorded rainfall. The driest non-polar desert on Earth.

~7,000 km long — runs along the entire western coast of South America through 7 countries.

4,892 m — the highest peak in Antarctica, located in the Sentinel Range of the Ellsworth Mountains.

Argentina, Australia, Chile, France, New Zealand, Norway, and the UK all claim overlapping sections — none recognised internationally.

Operated by over 30 countries year-round and seasonally. The largest is the US McMurdo Station.

The tallest and heaviest penguin species. They breed in Antarctica's brutal winter, the only animal to do so.

Antarctica holds about 26.5 million km³ of ice — if melted, global sea levels would rise by ~58 metres.

Signed by 54 nations. Designates Antarctica as a scientific preserve, banning military activity and mineral mining.

7,692,024 km² — the world's 6th largest country, and the only nation to occupy an entire continent.

21 km² — the world's 3rd smallest country. A tiny island nation in the central Pacific with ~10,000 people.

4,884 m — in Papua, Indonesia. The highest island peak in the world and highest point in Oceania.

~2,300 km long — off the coast of Queensland, Australia. Visible from space and a UNESCO World Heritage Site.

Australia is home to ~80% of the world's marsupials (kangaroos, koalas, wombats) and both species of monotreme (platypus, echidna).

Oceania spans roughly 100 million km² of ocean — making it one of the largest ocean regions on Earth.

The Indian Ocean is the warmest ocean in the world. The Persian Gulf, Red Sea, and Bay of Bengal can reach 34°C in summer. This warmth fuels powerful monsoon seasons that bring rain to over a billion people in South Asia.

Malaysia Airlines Flight MH370 vanished on 8 March 2014 with 239 people aboard. The search in the southern Indian Ocean has been the most expensive in aviation history. The main debris field has never been found.

On 26 December 2004, a magnitude 9.1 earthquake off Sumatra triggered a tsunami that killed over 227,000 people across 14 countries. It is the deadliest natural disaster in recorded history caused by a tsunami.

For over 2,000 years the Indian Ocean was the world's most important trading route — connecting Arabia, India, East Africa, and China. Spices, silk, gold, and ideas flowed across its waters long before Europeans arrived.

Located in the Mariana Trench near Guam. If you dropped Mount Everest (8,849 m) into Challenger Deep, the peak would still be over 2 km underwater. Only 3 humans have ever reached the bottom.

A horseshoe-shaped belt of volcanoes and earthquake zones circling the Pacific. It contains 75% of the world's active volcanoes and produces 90% of all earthquakes. Major events include the 1960 Chile earthquake (the most powerful ever, 9.5 magnitude).

Ferdinand Magellan became the first European to cross the Pacific Ocean in 1521, sailing from South America to the Philippines. His expedition (completed by Elcano) was the first to circumnavigate the entire Earth.

A massive concentration of floating plastic and marine debris twice the size of Texas (~1.6 million km²) trapped by ocean currents in the North Pacific Gyre. It contains an estimated 80,000 tonnes of plastic.

Flowing northward through 11 countries before emptying into the Mediterranean Sea, the Nile was the lifeblood of Ancient Egypt for over 5,000 years. It is the world's longest river — though some measurements put the Amazon very close at 6,400 km.

The Amazon discharges more water than the next seven largest rivers combined — about 20% of all freshwater that enters the world's oceans. Its basin covers 40% of South America. In the wet season, the river can be up to 48 km wide.

The Congo River in Central Africa reaches depths of 220 metres — making it the deepest river on Earth. It is so deep that unique species of fish have evolved in complete isolation in its depths. It is also the second largest river by discharge.

Flowing 2,860 km from Germany's Black Forest to the Black Sea, the Danube passes through or borders 10 countries: Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Romania, Bulgaria, Moldova, and Ukraine — more than any other river on Earth.

The Yarlung Tsangpo in Tibet flows at an average elevation over 4,000 m above sea level on the Tibetan Plateau, making it the highest major river on Earth. It eventually flows into India where it becomes the Brahmaputra.

Located in Montana, USA, the Roe River stretches only 61 metres from its source at Giant Springs to where it joins the Missouri River. It holds the Guinness World Record as the world's shortest river and was only 17.7 metres long when first measured.

Located in Siberia, Russia, Lake Baikal is both the deepest and oldest lake on Earth (~25 million years old). It holds about 20% of the world's unfrozen freshwater — more than all of North America's Great Lakes combined. Over 1,000 unique species live there.

Technically the world's largest lake, the Caspian Sea is a saltwater lake bordered by Russia, Kazakhstan, Turkmenistan, Iran, and Azerbaijan. It is so large it has its own weather systems and waves. It has been shrinking due to climate change and water diversion.

Lake Superior on the Canada–USA border is the world's largest freshwater lake by surface area. It contains 10% of all the surface freshwater on Earth. Its shoreline is so long (4,385 km) that if straightened, it would stretch from Duluth to the Bahamas.

On the border of Peru and Bolivia, Lake Titicaca sits 3,812 m above sea level in the Andes Mountains. It is the highest commercially navigable lake in the world. The Uros people have lived for centuries on floating islands made of totora reeds on its surface.

Located in Antarctica, Don Juan Pond has a salinity of ~44% — over 12 times saltier than the ocean and even saltier than the Dead Sea (34%). It is so salty that it stays liquid even at −50°C, making it one of the harshest and most alien environments on Earth.

On the border of Israel and Jordan, the Dead Sea is the lowest body of water on the surface of Earth at 430 m below sea level. Its extreme salinity (about 34%) means no fish can survive — but humans float effortlessly. It is shrinking by ~1 m per year.

Antarctica is a desert — it receives less than 200 mm of precipitation per year, almost entirely as snow. At 14.2 million km², it is nearly twice the size of the Sahara. Most of Antarctica's interior is so cold and dry that almost nothing can survive there.

Covering most of North Africa across 11 countries, the Sahara is the world's largest hot desert — about the size of the USA. It wasn't always a desert: 6,000 years ago it was a green savanna with rivers, lakes, and hippos. Climate shifts turned it into the vast sand sea it is today.

Parts of the Atacama Desert have never recorded measurable rainfall in recorded history. Some weather stations there have been operating for decades with zero precipitation. The landscape looks so Martian that NASA uses it to test Mars rovers. Yet it is home to unique plant and animal life adapted to survive on fog alone.

In 2005, NASA satellites recorded a ground surface temperature of 70.7°C in Iran's Lut Desert — the hottest land surface temperature ever measured on Earth. The air temperature was lower, but the dark rocks absorb so much solar energy that the ground itself becomes lethally hot.

The Namib Desert on the west coast of southern Africa is the oldest desert on Earth, having been arid for at least 55 million years. Its ancient dunes — some over 300 m tall — are among the tallest in the world. It is also surprisingly rich in life, including the famous fog-basking beetles and oryx.

The Arctic Desert covers the Arctic Ocean ice and surrounding tundra. Like Antarctica, it receives very little precipitation and qualifies as a true desert. Polar bears, Arctic foxes, and snowy owls have adapted to survive in one of Earth's most extreme cold-desert environments.

Located in Venezuela's Canaima National Park, Angel Falls plunges 979 m — so high that the water turns to mist before it reaches the ground. It was "discovered" by American aviator Jimmie Angel in 1933 when he spotted it from his plane. Its local name is Kerepakupai Merú ("waterfall of the deepest place").

On the border of Zambia and Zimbabwe, Victoria Falls is 1,708 m wide and drops 108 m. It creates such a massive spray cloud that it can be seen from 50 km away and generates its own localised rainforest. Its local name is Mosi-oa-Tunya — "The Smoke That Thunders".

Straddling Argentina and Brazil, Iguazu is a system of 275 individual waterfalls stretching 2.7 km. At peak flow it can discharge over 12 million litres per second — more than any other waterfall. Eleanor Roosevelt reportedly exclaimed "Poor Niagara!" upon first seeing it.

The world's largest waterfall is invisible — it's underwater. The Denmark Strait Cataract between Greenland and Iceland drops 3,505 m as cold, dense Arctic water sinks beneath warmer Atlantic water. It carries roughly 2,000 times more water than Niagara Falls. It's the largest known waterfall by volume.

Niagara Falls on the Canada–USA border attracts over 13 million visitors per year. Though not the tallest or widest, it is the most famous waterfall on Earth. It has been used to generate hydroelectric power since 1895, and its flow is actually reduced by 50–75% at night to redirect water for power generation.

Browne Falls in Fiordland, New Zealand has the world's tallest single uninterrupted drop at 836 m. Unlike Angel Falls which has multiple cascades, Browne Falls is a single clean plunge. It is extremely remote and only visible by boat or helicopter.

On 10 July 1913, the air temperature at Furnace Creek in Death Valley reached 56.7°C — the highest reliably recorded air temperature in history. Death Valley is so hot because it sits 86 m below sea level in a basin surrounded by mountains that trap heat and prevent cooling breezes.

On 21 July 1983, the Soviet research station Vostok recorded an air temperature of −89.2°C — the coldest ever measured on Earth's surface. At this temperature, exposed skin freezes in seconds and jet fuel turns to gel. A 2010 satellite measurement suggested −93.2°C in East Antarctica but this was a ground surface reading.

The village of Mawsynram in Meghalaya, India receives an average of 11,871 mm of rainfall per year — the most of any place on Earth. During the monsoon season the rain is so loud and heavy that villagers stuff grass in their windows for insulation against the noise. Nearby Cherrapunji held the record for over a century before Mawsynram surpassed it.

Commonwealth Bay in Antarctica is the windiest place on Earth, with average wind speeds of 80 km/h and gusts recorded at over 327 km/h. These are katabatic winds — cold, heavy air rushing down from the Antarctic plateau. They are so powerful they can rip tents, equipment, and people off the ground.

Yuma, Arizona gets more sunshine than any other city on Earth — an average of 4,015 hours of sunshine per year, which means the sun is shining 91% of all daylight hours. It can go months without a single cloudy day. Compared to London's ~1,600 hours per year, Yuma gets more than twice as much sun.

On 9 July 1958 an earthquake triggered a landslide into Lituya Bay, Alaska, generating a megatsunami with a wave runup of 524 m — taller than the Empire State Building. Trees were stripped from the mountainside to that height. Three boats were in the bay; one was sunk, and eyewitnesses on the surviving boats described being lifted over the treeline.

At its peak in 1920, the British Empire covered 24 million km² — about 25% of Earth's entire land surface — and ruled over 458 million people across every continent. It gave rise to the phrase "the empire on which the sun never sets." Its legacy shaped the modern world's borders, languages, legal systems, and trade routes.

Founded by Genghis Khan in 1206, the Mongol Empire became the largest contiguous land empire in history in just a few decades. At its peak it stretched from the Pacific Ocean to Eastern Europe. Mongol armies were so feared that entire cities would surrender without a fight. The empire collapsed almost as fast as it rose after Genghis Khan's death.

At its peak under Emperor Trajan in 117 CE, the Roman Empire spanned 5 million km² from Scotland to Mesopotamia. It gave the world its alphabet, legal code, roads, aqueducts, and the concept of a republic. The Roman calendar is the basis of the one used today. Even after its fall in 476 CE, its language (Latin) became the root of Spanish, French, Italian, Portuguese, and Romanian.

The Ottoman Empire ruled for over 600 years across three continents — Europe, Asia, and Africa — making it one of the most enduring and powerful empires in history. At its peak it controlled most of the Middle East, North Africa, and Southeast Europe. Istanbul (formerly Constantinople) was its magnificent capital. The empire only ended after World War I in 1922.

At its 17th-century peak, the Mughal Empire of South Asia produced roughly 25% of the entire world's economic output — more than all of Europe combined at the time. It was so fabulously wealthy that the word "mogul" (a powerful tycoon) comes directly from "Mughal." The Taj Mahal — one of the world's greatest buildings — was built by Mughal Emperor Shah Jahan.

The Byzantine Empire — the eastern continuation of the Roman Empire — survived from 330 CE to 1453 CE, a staggering 1,123 years. Based in Constantinople (modern Istanbul), it preserved ancient Greek and Roman knowledge through Europe's Dark Ages, kept Christianity alive in the east, and developed a legal code that influences law to this day. It finally fell when Ottoman Sultan Mehmed II conquered Constantinople.