Imagining the reunification of the Koreas

South Korea is separated from North Korea by a demilitarized zone

There’s a lot of symbolism going on in the South Korean flag: a red-and-blue yin-yang represents the harmony created by opposing forces, and the white background represents peace and purity. The four black trigrams symbolize the four elements. The CIA World Factbook has more info on this country of 52 million, including where it ranks globally on obesity rates, energy consumption, and more.

See South Korea's nighttime light usage, far surpassing North Korea's

You can tell a lot about a place by looking at satellite imagery of the earth at night. Economists use such images to study poverty and inequality, especially about secretive countries where it can be difficult to get information any other way. An image from NASA’s Earth Observatory shows the difference in electrification between North and South Korea (and the lights illuminating the DMZ are visible from space).

40 maps that explain North Korea

The Democratic People’s Republic of Korea (DPRK) is one of the most misunderstood countries in the world. Use these maps and charts, compiled by Vox, for context and clarity on North Korea. North Korea has a large military and an advanced nuclear...

Inside the architecture of Pyongyang's Kim dynasty

Since the bombings during the Korean War wiped out much of Pyongyang in the 1950s, three leaders of the Kim dynasty of North Korea have remade the ancient capital from the bottom-up, designing workers monuments, vast streets, and collectivized living spaces. Take a look inside the reclusive city with this architectural analysis accompanied by photographs.

An interactive visualization tracking 25 years of US-North Korea nuclear negotiations

From 1990 to 2017, the United States and North Korea engaged in a complex series of bilateral and multilateral negotiations. This interactive page, compiled by CSIS Beyond Parallel, displays a record of provocations and negotiations between the two...

South Korea's decades long effort to build a new capital

South Korea has spent decades trying to ease overcrowding in Seoul by developing Sejong City as a new administrative hub. Named after the king who created Hangul, Sejong was designed to decentralize government functions—but slow population growth and limited transit have complicated the plan.

Why South Korean women are having fewer babies

For decades, Asian countries have been combating dwindling birth rates by basically bribing families into having more children: offering government-subsidized housing, free IVF treatments, and even straight-up cash handouts. It hasn’t worked. In this BBC video, a TV producer, a cartoonist, and a private-school teacher explain their views on having children in 21st-century Korea.

K-pop is one of South Korea's biggest exports

Writer Vivian Yoon could never have imagined that the music she secretly loved as a kid growing up in Los Angeles’ Koreatown would become the phenomenon it is today. In this 14-part podcast, Yoon takes the deepest dive into the history of K-pop, a surprising journey that passes through the 1992 LA riots and a hip-hop club in Seoul once frequented by Black American GIs.

Davos has been home to many pivotal moments in international diplomacy

Davos provides a forum for unlikely meetings: FW de Klerk met with Nelson Mandela and Mangosuthu Buthelezi during South Africa’s transition from apartheid, North and South Korea held their first-ever ministerial talks, and East and West German leaders discussed reunification.

China's latest statement on why it wants to 'reunify' with Taiwan

"The Taiwan Question and China's Reunification in the New Era" is a white paper released by the People's Republic of China in 2022. It outlines the Chinese government's reasons for reclaiming/reunifying with the island nation of Taiwan in a series of detailed points. The full text of the document can be found here.

Hear from people who experienced Germany's unification in 1990

What was it like to see Germany's fractured halves reunite in 1990? Explore eyewitness accounts of the reunification of Germany and the fall of the Berlin Wall in this collection of artist and resident interviews. The Berlin Wall sundered the city...

See an anamorphic illusion of a massive crashing wave in South Korea

An enormous aquarium with perpetually crashing waves has popped up amidst an urban landscape in South Korea, but don’t expect to hear the water sloshing around if you walk by. Designed by District, the elevated tank is actually a massive anamorphic illusion. The digital media company created the pub

Visualizing the economic impacts of 5G

5G is set to revamp industries around the world, but the benefits may not be equally distributed. This nifty graphic illustrates what the global landscape may look like in 2035.

US defense spending peaked during the Korean War at 13% of GDP

In 1953, during the Korean War, US defense spending reached 13.58% of GDP—more than three times today’s level. That peak marked the most militarized moment of the Cold War, and spending has never returned to that level since.

Republicans launched a mid-decade redistricting push in 2025

Beginning in Texas, Republican-controlled legislatures in Missouri, Florida, Ohio, and North Carolina moved to redraw maps before 2030—an uncommon mid-decade effort aimed at securing additional congressional seats.

Imagine thousands of alternate histories of the world

AlternateHistory.com has hosted fan-written "what if" timelines, discussions, and speculative fiction since 2000, making it the largest online gathering of alternate history enthusiasts, with over 10,000 active members and a wiki cataloging hundreds of user-created scenarios. Two highlights to pique your interest: what if the Vikings had settled North America? What would have had to happen for the storyline of George Orwell's "1984" to come true?

Explore a multimedia timeline of Communism’s global rise and collapse

This timeline from The Washington Post traces the spread of Communism—from revolutions and Cold War flashpoints to movements in China, Cuba, Korea, and Vietnam—using archival photos and key moments to chart the ideology’s dramatic ascent and worldwide decline.

Explore an interactive map showing what makes people happy

Using 10,000 responses collected from people around the world about what makes them happy, this map offers insights into how relationships, finances, purpose, and small treats all contribute to a person's contentment. Recent data suggests that young people today are less happy than those in previous generations, indicating a need to reflect on what really matters in life.

Explore an interactive map built from more than 100,000 survey responses on where people find joy in their lives

How to bridge political divides

Can people who believe in opposing ultimate views of the world really live in peace together? That's a core requirement of individuals living in pluralistic societies. Law professor Samar Ali and public affairs strategist Clint Brewer don't agree on much, but they're great friends. In this TED Talk, the two share why political polarization in the US isn’t as intractable as we might think. Learn some tips for getting along in the free world here.

Tensions between the US and European NATO allies

The Associated Press article discusses US Defense Secretary Pete Hegseth's assertion in February of 2025 that restoring Ukraine's prewar borders or NATO membership for the country are both unrealistic. This represented a large rift between the United States and its other NATO allies, prompting concern about America’s commitment to the future of the alliance.

Experts suggest where the UN should be reformed

In 2020, as the United Nations marked its 75th anniversary, the Council on Foreign Relations' Council of Councils published a collection of expert essays proposing reforms to enhance the UN's relevance. This collection of essays is a thought-provoking look at the UN's future.

How people imagine a calendar year

It turns out everybody imagines the abstract calendar year in a simple, concrete way, though there are surprising differences between the exact model and shape of each image. Dive into one writer's collection of tens of thousands of questionnaire responses showing the fascinating consistency and divergence of how people visualize time.

Mapping Russia's historical borders

This interactive map illustrates how the country’s borders have changed over the centuries, dating all the way back to the year 862, when the Varangian king Rurik assumed leadership of Ancient Rus. Scroll down to see how Russia vastly expanded its territory in the 16th and 17th centuries, and skip to 1991 to see which countries gained independence after the fall of the USSR.

A ‘supernote,’ or nearly-perfect counterfeit $100 bill, was recently found in South Korea

These “supernotes” have even fooled US government officials. North Korea is widely believed to be behind the creation of these counterfeit banknotes.

Simulate the effects of government policies on climate projections

The En-ROADS tool lets you role-play as a global decision maker to explore the long-term effects of various policy ideas on climate. More than 341,000 people worldwide, including over 130 members of Congress, have used the simulation.

Researchers believe the brain consolidates memories, processes emotions, and plans for the future during dream states

The United States has had a tumultuous relationship with Cuba since its 1959 revolution, highlighted by a nuclear crisis and a decades-long trade embargo.

The United States is one of only around two dozen countries with a fully federal system of government, in which power is divided between national and state governments.

According to the physics of black holes, our 4D reality may be a hologram—a projection of information coded on a 2D surface on the edge of the universe.

Gerrymandering works through two techniques: cracking opposing voters across districts to dilute their power, and packing them into a few to waste their votes in lopsided majorities.

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

In 1963, a basement renovation in Turkey revealed a passageway to a hidden, multilevel underground city that once housed as many as 20,000 people

About 2,000 US babies are born annually without some portion of their limbs, potentially leading to a lifetime of pricey prosthetics.

In 2009, the nation was gripped by the story of a missing young boy who was believed to be floating over Colorado in a homemade balloon, until it was revealed that he was at home the whole time.

A 2019 Facebook event called on attendees to "Storm Area 51, They Can't Stop All of Us," resulting in countless memes, the creation of a music festival, and eventually the arrests of those who did try to approach the area.

In 1945, Surrealist artist Salvador Dalí and legendary animator Walt Disney began collaborating on a short film that was not completed until 2003, years after both men had died.

Visualize how CRISPR-Cas9—a type of immune system used by single-celled organisms to attack invasive viruses—targets and makes precise changes to a gene's DNA.

Browse a detailed visual analysis of over 200,000 similes—comparisons that often use 'like' or 'as'—from popular fiction to see how frequently writers the same idiomatic expressions.

Artificial coral reefs have been 3D printed from nontoxic, biodegradable terracotta clay, which coral polyps have used as a foundation for rebuilding marine ecosystems.

All rainbows are 'raincircles' caused by water droplets separating white sunlight into a spectrum of colors, but Earth's surface blocks the bottom half of the circle from our line of sight.

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

Play the role of a student in a game where you try to navigate college and remain debt-free, selecting different income levels, high school experience, race, ethnicity, and more.

SpaceX's S-1 or 'prospectus' revealed many previously unknown details about the company, including its unprofitability despite doing $18.7B in revenue in 2025, exactly how many voting shares Elon Musk will have in the company (roughly 85%), and more.

Apeirophobia is an overwhelming fear of living forever, perhaps stemming from the brain's inability to conceptualize an infinite life.

Neutron stars, the remains of some massive stars after they explode in a supernova, are the densest directly observable objects in the universe.

Memecoins are a type of cryptocurrency—a form of digital currency with a wide variety of uses—created around popular 'memes,' or viral internet jokes.

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.

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

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