Tokyo is the world's largest city by population

Jakarta surpassed Tokyo as the world's largest city in 2025

Asia is the epicenter of global urban population, hosting most of the world's ten largest cities by population. The top three are Jakarta, Indonesia, Dhaka, Bangladesh, and Tokyo, Japan.

Comiket, hosted in Tokyo, is the world’s largest fan-run convention

Comiket—short for Comic Market—is a semiannual, volunteer-organized fan art marketplace in Tokyo where up to 750,000 attendees experience self-published comics, anime, games, cosplay, and more over a span of four days.

Visualizing the world's population centers

What does population density look like on a global scale? These detailed 3D renders illustrate our biggest urban areas and highlight population trends.

Woven City at the base of Mount Fuji in Japan

The Woven City at the base of Mount Fuji in Japan is a ‘living laboratory’ for new technologies. It is being developed by Toyota subsidiary, Woven Planet, and will be the world’s first programmable city.

How landlocked Moscow became Europe's biggest city

It's far enough north to have avoided the nomadic hordes who, for centuries, raided the European plain to its south—but it's just south enough to still farm the land. What's more, Moscow is protected by the huge taiga forests and is guarded by rare east-west rivers in a continent with mostly north-south ones.

What its like to live in the world’s ‘smartest cities’

What’s it like to live in a smart city? The BBC interviewed residents of five of the world’s smartest, as determined by the International Institute for Management Development, to find out. (See previous resource for those rankings.) Common praises included ease of transportation, sustainability initiatives and proximity to nature.

Visualizing New York City's public transportation commutes

New York City is one of the largest cities in the world, and transports one of the largest numbers of commuters on a daily basis. This data visualization tells the stories of those commuters, showing the varying volume of travelers throughout the week and day, where they are going, and maps of high-traffic areas like stadiums and midtown. Dive into the data here.

During the Medieval Period, urban populations grew significantly

As workers moved from fields to cities throughout the era, large metropolises of enduring strategic importance were formed from Paris, France, to Baghdad, Iraq.

How Japanese Anime became a global phenomenon

Anime's popularity was once confined to Japan, but the art form has attracted a global audience in the 2020s due in large part to its availability on streaming and increased watch times during the COVID-19 pandemic. This Hollywood Reporter article explains how other factors—including several influential celebrities who consider themselves anime aficionados—have made the genre an international sensation.

The evolution of Mexico City, from the Aztecs to today

The sprawling modern city situated in the Valley of Mexico began a millennium ago as an island in the middle of Lake Texcoco, connected to land through a series of causeways. Learn how the Aztecs built Tenochtitlan, how the Spaniards conquered it, why the lake disappeared, and more with this visually rich history and geography of a city of 9 million people.

A list of the world's top 25 economies by GDP

Gross domestic product estimates the value of goods and services produced in a country, typically through the expenditure method, which adds up spending by consumers, investors and governments with the value of exports. The top five economies are the US, China, Germany, Japan and India.

See a 3D reconstruction of Tenochtitlan, the Aztec capital that was home to an estimated population of 200,000 to 400,000.

As of 2024, China is the largest overall contributor to global greenhouse gas emissions

Due to its large population, the nation's per capita emissions continue to lag behind those of the US, Canada, Russia, Australia, and Saudi Arabia. The Arab country has experienced the most significant increase in per capita greenhouse gas emissions since 1990, now leading the world at 22.8 metric tons of carbon dioxide equivalent per capita.

The Nasdaq is typically the world's second-largest stock exchange when measured by the total market value of the companies listed on the exchange

However, the Nasdaq sometimes surpasses the NYSE in terms of the total market cap of all the companies listed on each exchange. For instance, as of late April 2026, the Nasdaq's roughly 4,000 listed companies had a total market cap of about $44T, while the NYSE's roughly 2,300 companies' total market cap was around $38T.

There are over 800 annual marathons, but only seven deemed World Marathon Majors

The races—Tokyo, Boston, London, Berlin, Chicago, Sydney, and New York City—are on some of the best-known courses in the world and are run by some of the sport’s top athletes.

Japan has one of the largest debt-to-GDP ratios among developed countries

On the face of it, this appears to be a bad sign. But a closer look at Japan’s investment strategies reveals that its relatively high debt might be more sustainable than meets the eye.

The US used military pressure to force Japan to open to foreign trade in the 1850s

Commodore Matthew Perry arrived in Edo Bay (now Tokyo Bay) with heavily armed warships, pressuring Japan to open its ports. His expeditions led to the 1854 Treaty of Kanagawa, which opened two ports for supplies and established formal US-Japan relations. Full commercial trade followed later under the 1858 Harris Treaty.

Eleven aqueducts funneled water to Rome's 1 million inhabitants

The Roman Empire's capital city was home to about one million people at its peak and managed to provide running water to many of its homes, fountains, and public baths. This was made possible by the 11 aesthetically grand aqueducts that poured into ancient Rome from the countryside.

Chess is played by an estimated 600 million people worldwide

Chess remains one of the most popular games in history, with roughly 600 million players across the globe. The game thrives casually in homes, schools, and parks, while also sustaining robust online communities and professional tournaments.

Japanese Prime Minister Shinzo Abe dressed as Mario at the Olympics

In a 2016 ceremony at that year’s Summer Games in Rio, Abe dressed as Super Mario to celebrate his country hosting the 2020 Olympics. It was a logical move: The character is one of the most recognizable characters in the world and someone who’s now associated with Japanese culture.

How public policy shapes demographic trends

This IMF podcast explores the population booms and busts throughout human history. According to Harvard economist and demographer David Bloom, it took more than 50,000 years for the world population to reach 1 billion. But since 1960, we have added...

San Francisco has the highest-paying average monthly salary in the US at $7,092

Other relatively high monthly average salaries in major cities worldwide include those in Switzerland, specifically Geneva at $7,984 and Zurich at $7,788. This chart shows other major cities across the world with high average monthly salaries.

6.7 million people attended Oktoberfest in 2024

With 6.7 million visitors and 1.8 million gallons of beer consumed, 2024's Oktoberfest was large, but smaller than 2023's, which had 7.2 million visitors, making it the most-attended Oktoberfest ever. It was also not the Oktoberfest that consumed the most beer—that would be 2011, with nearly 8 million liters, or roughly three Olympic swimming pools’ worth.

How many people died in the atomic bombings remains disputed

Nearly 80 years after Hiroshima and Nagasaki, historians still disagree on the death toll from the atomic bombings. Estimates vary by up to 100,000, reflecting differences in methodology, sources, and the method used to count later radiation-related deaths.

WeChat: The world's second-largest messaging platform

The central technology in Tencent's empire, WeChat boasts roughly 1.4 billion users and provides a platform for the company to expand its ambitions in digital payments, e-commerce, and more. Unlike rival WhatsApp (owned by Meta), WeChat was built as a "superapp"—a single place where users are provided a wide range of features.

Pop artist Yayoi Kusama is arguably the most famous living female artist

The Japanese pop artist is one of many figures whose work challenged ideas of traditional fine art. Keith Haring, Andy Warhol, Takashi Murakami, and Claes Oldenburg are among the other artists known for defining pop art.

The US dollar is the most widely circulated currency in the world, and is involved in nearly 90% of global transactions

In 2026, Finland was named the world's happiest country for the ninth consecutive year based on its wealth, social safety network, and high life expectancy, among other factors.

'Shogun,' a 1980s TV series, helped popularize sushi in the US by stimulating an American interest in Japanese culture.

Electrical grids worldwide must double their power delivery capacity by 2050 to meet surging demand from AI and electric vehicles.

The syncytiotrophoblast is the outer layer of the placenta and the largest human cell, spanning an area about twice that of a king-sized bedsheet.

See the most iconic photos from four decades of LIFE magazine

The Nasdaq's 'Magnificent 7' companies are responsible for roughly 40% of the Nasdaq 100 index's gains, while the remaining 93 companies account for the other 60%.

Track the location of the Voyager probes, currently between 13 and 15 billion miles away from Earth.

Explore the history, structure, and species of Australia's Great Barrier Reef with this interactive journey narrated by Sir David Attenborough.

Massive blooms of microscopic plankton called dinoflagellates produce the neon blue light seen in glowing tides.

US housing costs have risen by roughly 175% between 1991 and 2026—but a growing number of Gen Zers are becoming homeowners anyway. In 2025, 4% of homebuyers were Gen Z, up from 3% the year before.

The Russia-Ukraine conflict is the largest ground war in Europe since World War II in terms of casualties, forces mobilized, and displacement of civilians.

Some Pokémon have been named after real and fictional organisms, while some real-world species have been named after Pokémon, such as Chilicola charizard and Binburrum zapdos.

Explore a list of the 100 best novels of all time, compiled by some of the world's best living writers, including Salman Rushdie, Stephen King, and Jennifer Egan.

The identity of the Tank Man in the iconic photo from the 1989 Tiananmen Square protests remains unknown and was possibly killed.

Take a 3D tour of the Hajj, Islam's annual pilgrimage to Mecca, undertaken by over 1.5 million Muslims.

Three Ebola species are responsible for most large outbreaks of the disease, yet the only approved Ebola vaccine is known to work against just one of them.

Graffiti dates back to at least ancient Pompeii, where citizens scrawled messages to one another on public walls

Double world record holder Hunter Ewen helped conquer his fear of balloons, called globophobia, by training to win Guinness World Record titles for balloon inflation.

The hormonal disorder PCOS was renamed PMOS in 2026, a move designed to improve care and research by shifting the focus to the hormonal causes of this condition that affects 1 in 8 women.

Sunflowers have long been a symbol of nuclear disarmament because they can extract large amounts of radioactive cesium from soil.

A pickleball's loud 'pop' sound can reach 120 decibels, which is equivalent to a hammer hitting a nail

The boiling temperature of water decreases with increasing elevation because the molecules need less energy to overcome the lower atmospheric pressure associated with thinner air.

Legendary architect Frank Lloyd Wright designed the SC Johnson headquarters in Wisconsin, aiming to make a cathedral-like workplace