geography

The Sahel is a semi-arid region in Africa lying between the Sahara to the north and Sudanian savanna to the south.

Antarctic ice covers over 14 million square kilometers and contains roughly 60 percent of the world's freshwater.

Singapore's Marina Bay Sands resort is known for its rooftop infinity pool spanning three towers.

The Nile Delta is one of the world's largest river deltas, located where the Nile River meets the Mediterranean Sea.

The Alaska Highway, completed in 1942, runs from Dawson Creek, British Columbia, to Delta Junction, Alaska.

Reykjavik, the capital of Iceland, is the northernmost capital city of a sovereign state.

The Empire State Building in New York City, completed in 1931, was the world's tallest building until 1972.

Burj Khalifa in Dubai is the tallest building in the world at 828 meters, completed in 2010.

Tokyo Skytree, completed in 2012, is the tallest tower in the world at 634 meters.

The Arctic Circle marks the southernmost latitude where the Sun can remain above the horizon for 24 continuous hours.

The Tropic of Cancer is the northernmost circle of latitude where the Sun can appear directly overhead.

Iceland has more than 30 active volcanic systems and frequent eruptions.

The Strait of Hormuz is a strategic waterway connecting the Persian Gulf to the Gulf of Oman.

The Black Sea connects to the Mediterranean Sea through the Bosporus and the Dardanelles straits.

Lake Superior is the largest freshwater lake in the world by surface area.

The Danube River flows through 10 countries, more than any other river in the world.

The Caspian Sea is the largest enclosed inland body of water by area, bordered by Russia, Kazakhstan, Turkmenistan, Iran, and Azerbaijan.

The Mississippi River is the second-longest river in North America, flowing about 3,766 kilometers.

The Gobi Desert spans parts of northern China and southern Mongolia.

The Atacama Desert in Chile is one of the driest non-polar deserts on Earth.

The Ho Chi Minh Trail was a network of supply routes used by North Vietnam during the Vietnam War.

Wellington, New Zealand, is the southernmost capital of a sovereign state.

The 1915 Canakkale Bridge in Turkey, opened in 2022, is the longest suspension bridge in the world.

The Akashi Kaikyo Bridge in Japan was the longest suspension bridge in the world from 1998 to 2022.

Mount Elbrus in Russia, at 5,642 meters, is the highest peak in Europe.

The Atlas Mountains stretch across Morocco, Algeria, and Tunisia in northwest Africa.

Mont Blanc, on the French-Italian border, is the highest peak in the Alps at 4,805 meters.

Aconcagua in the Argentine Andes is the highest mountain in the Western Hemisphere, at 6,961 meters.

Mount McKinley, also known as Denali, is the highest peak in North America at 6,190 meters.

The prime meridian, defined as zero degrees longitude, runs through Greenwich, England.

The Tropic of Capricorn is the southernmost circle of latitude where the Sun can appear directly overhead.

The Strait of Malacca, between Malaysia and Sumatra, is one of the world's most important shipping lanes.

The Aral Sea, formerly one of the four largest lakes in the world, has shrunk dramatically since the 1960s due to irrigation diversions.

The Cape of Good Hope is at the southwestern tip of South Africa, near the meeting point of the Atlantic and Indian Oceans.

The Yangtze River is the longest river in Asia and the third-longest in the world, at about 6,300 kilometers.

The Volga is the longest river in Europe, flowing about 3,690 kilometers entirely within Russia.

Mount Everest, at 8,848.86 meters above sea level, is Earth's highest mountain above sea level.

The Amazon rainforest spans approximately 5.5 million square kilometers across nine South American countries.

The Sahara is the largest hot desert in the world, covering about 9.2 million square kilometers across North Africa.

The Nile is one of the world's longest rivers, flowing approximately 6,650 kilometers through northeastern Africa.

Antarctica is the coldest, driest, and windiest continent and contains about 70 percent of Earth's fresh water.

The Bering Strait separates Russia and Alaska, connecting the Arctic Ocean and the Bering Sea.

Mexico City is built on a former lakebed and continues to subside as groundwater is depleted.

Greenland is the world's largest island and an autonomous territory within the Kingdom of Denmark.

Iceland is a Nordic island country with a population of about 380,000.

Switzerland is a federal republic in Central Europe known for political neutrality and high-quality watchmaking.

Madagascar is the world's fourth-largest island, located off the southeastern coast of Africa.

The United Kingdom comprises England, Scotland, Wales, and Northern Ireland.

Earth has seven traditionally recognized continents: Africa, Antarctica, Asia, Australia, Europe, North America, and South America.

Asia is the largest continent by both land area and population.

The Dead Sea, on the border between Israel and Jordan, has one of the lowest land elevations on Earth at about 430 meters below sea level.

Greenland is the world's largest island that is not a continent.

Tokyo is the most populous metropolitan area in the world.

The Caspian Sea is the largest enclosed inland body of water on Earth.

The Equator is an imaginary line at zero degrees latitude that divides Earth into the Northern and Southern Hemispheres.

The International Date Line is a notional line of demarcation around 180 degrees longitude where the calendar date changes.

The European Union is a political and economic union of 27 member states located primarily in Europe.

Brazil is the largest country in South America by both area and population.

The Schengen Area comprises European countries that have officially abolished passport and other border controls at their mutual borders.

The Suez Canal, opened in 1869, connects the Mediterranean Sea to the Red Sea through Egypt.

The Channel Tunnel, opened in 1994, is an undersea rail tunnel connecting England to France beneath the English Channel.

The Mediterranean Sea is bordered by Europe, Africa, and Asia, covering approximately 2.5 million square kilometers.

The Arctic Ocean is the smallest and shallowest of the world's five oceans.

The Trans-Siberian Railway is the longest railway line in the world, spanning about 9,289 kilometers from Moscow to Vladivostok.

The Pacific Ocean is the largest and deepest of Earth's five oceans, covering about 165 million square kilometers.

The Mariana Trench reaches a maximum known depth of approximately 10,935 meters at the Challenger Deep.

Russia is the largest country in the world by land area, spanning approximately 17.1 million square kilometers.

Stockholm, the capital of Sweden, is built across 14 islands.

The Strait of Gibraltar separates Europe from Africa, connecting the Atlantic Ocean and the Mediterranean Sea.

Mount Fuji is Japan's highest mountain at 3,776 meters and is an active stratovolcano.

Australia is both a country and the smallest continent, with around 26 million inhabitants.

New Zealand consists of two main islands, the North Island and the South Island, located in the southwestern Pacific Ocean.

Indonesia is the world's largest archipelago by number of islands and the world's fourth most populous country.

Japan consists of four main islands: Honshu, Hokkaido, Kyushu, and Shikoku, plus thousands of smaller islands.

China is the most populous country in the world along with India, with each having more than 1.4 billion people.

India became the world's most populous country in 2023, surpassing China, according to UN estimates.

The Vatican City is the smallest sovereign state in the world by both area and population.

Lake Baikal in Russia is the deepest freshwater lake in the world, reaching about 1,642 meters at its deepest point.

The Great Barrier Reef off the coast of Queensland, Australia, is the world's largest coral reef system.

Iceland sits on the Mid-Atlantic Ridge, where the North American and Eurasian tectonic plates are diverging.

The five Great Lakes of North America are Superior, Michigan, Huron, Erie, and Ontario.

Canada has the longest coastline of any country, spanning approximately 202,080 kilometers.

Singapore is a city-state at the southern tip of the Malay Peninsula.

The Amazon River discharges more water into the ocean than any other river on Earth.

The Panama Canal, opened in 1914, connects the Atlantic and Pacific Oceans through Central America.

The Alps are a major mountain range in Europe, stretching across France, Switzerland, Italy, Germany, Austria, Liechtenstein, and Slovenia.

The Himalayas contain Mount Everest and most of the world's tallest peaks, separating the Indian subcontinent from the Tibetan Plateau.

The Andes are the longest continental mountain range in the world, running along the western edge of South America.

Mount Kilimanjaro in Tanzania is the highest mountain in Africa, at about 5,895 meters above sea level.

Lake Victoria, located in East Africa, is the largest lake in Africa by surface area.

The Pyramids of Giza in Egypt are the only one of the Seven Wonders of the Ancient World still in existence.

Petra, the rock-cut city in Jordan, was the capital of the Nabataean Kingdom and a UNESCO World Heritage Site since 1985.

Machu Picchu, the 15th-century Incan citadel in Peru, is a UNESCO World Heritage Site at about 2,430 meters elevation.

Angkor Wat in Cambodia is the largest religious monument in the world, originally built as a Hindu temple in the 12th century.

The Galapagos Islands inspired Charles Darwin's theory of evolution by natural selection following his 1835 visit.

Yellowstone, designated in 1872, is widely considered the world's first national park.

Niagara Falls comprises three waterfalls on the Niagara River along the U.S.-Canada border.

Victoria Falls on the border between Zambia and Zimbabwe is one of the largest waterfalls in the world.

The Grand Canyon in Arizona is approximately 446 kilometers long and up to 1,857 meters deep.

Paris, the capital of France, has a population of about 2.1 million in the city proper and over 12 million in its metropolitan area.