Explore a worldwide ranking of smart cities

Evaluating the world’s 'smartest' cities

A ranking of "smart cities" analyzes cities by economical and technological aspects as well as quality of life, inclusiveness, and care to the environment.

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.

Smart city systems can increase positive feelings toward local government

A 2018 study analyzed 50 global cities to determine whether smart city technologies enhance residents' quality of life. It found that these technologies can decrease the time spent interacting with healthcare and government by 45% to 65%, while also decreasing the disease burden by 8% to 15%.

The world's 10 best places to live

The Economist Intelligence Unit's Global Liveability Index ranked 173 cities based on stability, healthcare, culture and environment, education, and infrastructure. The report shows an overall increase in livability scores compared to previous...

Singapore, one of the world's smartest cities

A fascinating look into what makes Singapore one of the smartest cities in the world, including human-centric innovations benefitting human health such as the AI-powered "Smart Elderly Alert System."

What is a smart city?

The internet of things and automation are two of the technologies used in smart cities. Learn about the technologies making cities more human-centric in this three-minute read.

Dubai and Barcelona are examples of smart cities

By integrating technology into public transit, utilities, and other municipal systems, these cities aim to reduce costs and enhance the quality of life for their residents. Some of these technologies include adaptive lighting, parking sensors, and underground waste systems.

America's happiest cities in 2023

WalletHub analyzed 180 cities using thirty indicators—like depression rate and average leisure time—to rank each city by the happiness of its residents. Check out the list to see how your city ranks.

Explore plans for smart cities expected to be built by 2050

Locations such as Net City in China, Woven City in Japan, and NEOM in Saudi Arabia are expected to incorporate green energy, AI, and advanced transportation system technologies to enhance air quality, reduce congestion, and minimize pollution by significantly reducing personal car use.

Digital twins create real-time 3D models of smart cities

These re-creations allow city planners to track changes and manage infrastructure more easily by testing strategies in virtual environments. Geospatial technologies, such as mobile mapping and satellite imaging, help cities assess urban layouts, plan for disasters, and manage resources more efficiently.

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.

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

In 1974, Los Angeles’s Community Analysis Bureau built a smart city

Los Angeles utilized aerial imaging and cluster analysis to gather and interpret civic data, leveraging surveillance technologies developed by the Department of Defense during the height of the Cold War. Instead of being used for military purposes, data insights helped direct social services to high-poverty neighborhoods.

An interactive sound map of 8,000 locations around the world

Cities and Memory's global sound map covers 140 countries, featuring paired recordings: original field captures of a moment in time and an artist's recomposition built from the same source. The structure treats every location as both document and raw material, giving 2,500 contributors the same prompt with unpredictable results.

Will smart cities widen the divide between rich and poor?

Author of the book "Uneven Innovation" talks about the need for intention when planning smart cities to avoid unintentionally creating inequality. This hour-long podcast delves into the impact of privatizing public services, community engagement,...

EXTREMA is a smart city system protecting residents from heat-related health risks

The mobile application is designed to protect citizens in select European cities from extreme temperatures by calculating the heat index at a specific location and providing personalized information to users. Municipal governments can also utilize it to inform emergency responses, such as determining when and where to open cooling centers.

Visualize your city’s annual daylight map

Type in your town or region and see sunrise and sunset for each day of the year. A separate view shows the number of hours of day versus night for each day. Search a city far north like Oslo, Norway, and compare its graphs to one near the equator (like Singapore).

The world’s top 20 cities for startups include San Francisco

In 2023, Singapore had the highest venture capital funding per capita in the world. But that doesn’t necessarily mean it’s the best place to have a startup. In 2023, PitchBook analyzed data to determine the world’s best startup city, including fundraising activity, venture capital deals, and exit value. San Francisco ranked as No. 1. See which other locales landed in the top 20 with this graphic.

View major global infrastructure, including power plants, fuel lines, and water pumping stations

The Open Infrastructure Map displays data from the OpenStreetMap database, which aggregates information from freely licensed geodata sources, surveys, and photographic and satellite imagery. It also displays power lines, generators, substations, various chemical pipelines, telecommunications towers, data centers, and more in daytime and nighttime maps.

Explore a map of data centers worldwide

As of February 2026, the US has more data centers (over 4,000) than the next 15 countries combined, thanks to years of investment by cloud service providers and technology companies. The next largest data center footprints come from the UK and Germany, with about 500 facilities each, followed by China with about 370.

An architect ranks the best bridges in the world

Architext Ezra Groskin builds bridges and argues that the best bridges do more than allow traffic. They should, he believes, encourage human interaction and lingering to ultimately become a destination of their own. Explore ten stunning designs that connect communities, from New York to Switzerland.

51 must-see attractions in Barcelona

Planning a trip to Barcelona? Check out this comprehensive list of the city’s most iconic sites. It’s organized from most well-known to least, so if you’re pressed for time, the authors recommend concentrating on the top of the list.

Explore the state of religious freedom around the world

This interactive tool visualizes government restrictions on religion and social hostilities involving religion across countries worldwide. It enables users to compare nations and monitor changes over time.

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.

Explore an interactive database of critical minerals and their uses

Columbia University's Critical Materials Monitor identifies 56 elements required for the clean energy transition. The tool provides details on the reserves, production, and trade of each element, alongside what materials are needed for each technology (desktop only).

The American Society of Civil Engineers' infrastructure report card gave the US a C in 2025, its highest grade since the project launched in 1998.

How long it takes to travel by train from various cities

This interactive allows users to see how long it would take to move from one city to another in Europe via trains.

The American Society of Civil Engineers' infrastructure report card gave the US a C in 2025, its highest grade since the project launched in 1998.

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

Stanford built a Google Maps for the Roman Empire, revealing how much it cost to travel in the ancient world

This site reaches millions of visitors who are tired of AI chatbots and seeking human connection. Pretend to be an AI chatbot and ask questions, provide answers, and draw for people in real time.

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

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.

Crows are believed to have intelligence on par with a seven-year-old child and demonstrate complex behaviors, from problem-solving with tools to recognizing human faces.

Calculate how much of your tax dollars go to each federal program based on your income, filing status, and number of children

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.

See the 25 of the best photos of auroras from around the world.

An investigation suggests a Scottish island became awash in forever chemicals via seafoam and seaspray—raising questions about what that means for the safety of other coastal areas.

The first steps to rebuilding your credit score include getting to know exactly what's on your credit report and figuring out how far you are from the '700 club,' or 'good score' range.

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

A century of Billboard issues documenting the evolution of popular music.

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%.

In 2025, four executives from large tech companies were given positions in the US Army Reserves—including Palantir Chief Technology Officer Shyam Sankar, which reinforced Palantir's ties with the US military and its role as a leading defense partner.

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

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.

Hotels in Cannes, the glamorous city on the French Riviera, hire hawks to ward off seagulls during the city's famous film festival.

The first image of a black hole was captured by creating an Earth-sized virtual observatory from a network of eight radio telescopes.

See photos of Meteora, a mountainous site in central Greece, home to 14th-century monasteries perched atop soaring outcroppings.

See this overview of the firework rules across all 50 states, ranging from a complete ban on non-professional fireworks in Massachusetts to states with more lax rules like Indiana.

An initial public offering or 'IPO' is the process of a private company becoming public by putting shares of the company on the stock market for purchase.