LA used to have one of the best mass transit systems in the country

45% of Americans have no access to public transit

Most US transit was built on a monocentric design, funneling riders into a downtown center. But today's most common commute is from suburb to suburb, meaning the system is built for a work pattern that no longer exists.

How LA brought water to its booming population

By the turn of the 20th century, Los Angeles had grown from a dusty, crime-ridden pueblo into a thriving metropolis. The only problem was that it was growing too fast. Here's the story of how the booming town created a massive water infrastructure to redirect area rivers to its residents.

Why high-speed rail hasn't worked in the US

High-speed rail connects cities across Europe and Asia, but American attempts have faced ballooning costs and delays. California's failed attempt to connect San Francisco and Los Angeles is the most prominent example of the dysfunction.

Read a complete history of urban mass transit in the United States

Explore the rise and fall of American mass transit, from the horse-drawn omnibus era through the streetcar age to the automobile's dominance. In the 1920s, streetcars carried 12 to 13 billion riders per year. By 1963, that number had shrunken to 300,000.

Los Angeles once suffered some of the worst smog on Earth

From the 1940s through the 1960s, Los Angeles was blanketed by dense, eye-burning smog so severe that drivers sometimes couldn't see traffic lights. The issue led to the nation's first local air pollution controls and inspired the passage of the 1970 Clean Air Act.

Self-driving cars may upend transit before cities can build it

Austin approved a $7.1B light-rail in 2020, but components of the plan have already been cut. Simultaneously, Waymo launched a 200-car autonomous fleet across the city. Cities now face a choice: invest in decadeslong fixed infrastructure projects or embrace flexible, on-demand autonomous vehicles that can navigate anywhere.

The New York MTA is North America's largest transit system

The MTA's FY2026 budget is $21.3B, and the system carried 1.6 billion riders on buses and subways in 2024, making it by far the largest transit network in the country.

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.

The 15-minute city lets residents meet their daily needs within 15 minutes on foot

Many cities have been designed with inefficient layouts that waste time and lower the quality of life of those who live there. In the 15-minute city, essential services—including work, food, education, and health—should all be located within a short walk or bike ride from where people live.

Some California cities outsource their public services entirely to the county

Southern California's "contract cities" incorporate as municipalities but pay Los Angeles County for police, fire, and other services rather than running their own departments—a cost-saving model common across the region.

NYC congestion pricing a year in: traffic is down, transit is up

Manhattan's congestion pricing program has quietly become a success story. WNYC reporter Stephen Nessen examines why the original backlash to the concept has faded, how New Yorkers adjusted, and what the city's experience shares with similar policies in Stockholm and London.

The National Mall once had canals and rail lines

In the 1800s, the National Mall looked nothing like it does today. Canals, rail lines, markets, and industrial uses crisscrossed the Mall before later redesigns cleared it into a unified civic landscape.

15 out of 25 major US cities have a lower cost of living than their nearby suburbs

These cities are Los Angeles, Chicago, Dallas, Philadelphia, Phoenix, Boston, San Francisco, Detroit, Minneapolis, Denver, Baltimore, St. Louis, Orlando, Charlotte, and San Antonio. This article details the cost of living in major US cities versus their nearby suburbs, according to data from 2023.

Explore the components of the linear particle accelerator at Los Alamos

Located at the site of bomb design and development for the Manhattan Project, LANSCE features an injector system for hydrogen ions, a series of tanks with alternating electric fields for proton acceleration, and an isotope production facility that creates radioisotopes for medical treatments.

The US air traffic control system is safe but due for major technological updates

On any given day, over 3 million passengers fly on roughly 45,000 flights in the US. Flying today is safer than ever, but air traffic controllers deal with outdated technology that can interfere with pilot communication.

In the '70s, graffiti moved to subway cars

Unlike static walls, the silver cars moved throughout the city, like a canvas in perpetual motion. That made them highly desired by graffiti artists, especially because tagging them was considerably more difficult and, in turn, more impressive than a simple tag in an alley.

School buses are the safest vehicles on the road

Even without seat belts or airbags, the big yellow school bus transporting millions of students to school each day remains the safest vehicle on the road. A long history of tragic lessons led to today's highly tested school bus design, including the padded compartments created by school bus seats, multiple emergency exits, cross-view mirrors, and more.

Roman roads have lasted for millennia and were key to its military might

Known for their almost absurd straightness, Roman roads connected the empire's armies, messengers, and traders as imperial administrators sought to keep down rebellion and build up Roman wealth. Rome's highways were expertly engineered, well-patrolled, and easy to navigate.

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

The archaeological sites uncovered through London's Crossrail Project

The Crossrail Project is an underground train system in London, which saw 26 miles of new tunnels created over more than a decade. The project provided unique access to long-buried layers of London's history, and a massive parallel archaeological excavation took place.

A list of US labor unions

Maybe you’ve heard of the Teamsters, the trucking union that's among the most well-known labor unions in the US. But you might not have heard of the National Association of Letter Carriers. As it turns out, there can be a union for almost every profession, no matter how niche.

View the 18 vehicles that broke the land speed record

The battery-powered "La Jamais Contente" was the first car to exceed 100 kilometers (62.1 miles) per hour, achieving the feat in 1899. By 1997, advancements in aerodynamic understanding and engineering led to the Thrust Supersonic Car, a jet-powered vehicle that reached a speed of 1,223.6 kilometers (760.3 miles) per hour.

Tesla's alternating current power's most of the world's electric grids

In 1879, Thomas Edison’s light bulb relied on direct current, but such currents can't efficiently transmit power over long distances. Nikola Tesla introduced alternating current, which feature far fewer energy loses. Despite Edison’s attempts to discredit AC, Tesla proved its efficiency by lighting the 1893 Chicago World’s Fair.

Southern rap redefined the sound of hip-hop in the '90s

In the 1980s, most attention focused on New York, the birthplace of hip-hop, and Los Angeles, the epicenter of its burgeoning gangsta variant. By the mid-90s, though, artists like Outkast, Master P, and Missy Elliott shifted the focus to the south.

Congestion from Lunar New Year holiday travels can last around 40 days

American Thanksgiving or winter holiday travels aren't nearly as busy as Chunyun, the annual travel rush kicked off by the Lunar New Year. It's widely considered to be the largest mass migration of humans in the world. Millions of people travel within China to be home for the traditional family reunion meal.

Ranking the best fast food in America

Grab some ketchup packets, toss on your cardboard crown, and meet us in the drive-thru! Browse through the best of the best from fast food and fast casual restaurant chains in 15 categories, including Best Cheeseburger, Best Spicy Chicken Sandwich, Best Fries, Best Onion Rings, and even Menu Item of the Year.

Louisiana's 'Cancer Alley' is infamous for having some of the highest industrial pollution, toxic air emissions, and cancer risks in the US.

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.

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.

In 1984, Operation Smash Hit intentionally crashed a 239-ton train into a nuclear waste canister at 100 miles per hour to prove the canister's safety, which remained completely intact and lost just 0.29 of its 100 pounds of pressure.

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

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

Mark Twain spent decades feuding with the US Postal Service, convinced its costs and regulations were bureaucratic overreach.

US consumers collectively owe more than $1T to credit card companies—almost as much as they owe in auto loans.

The price of gas is a composite made up of several different factors, with the federal gas tax making up less than 20% of what drivers pay at the pump.

While El Niño moves warm Pacific Ocean waters east along the equator, La Niña moves them west, shifting where rainfall will become more common for months.

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.

While the first exchange-traded fund (a 'basket' of different assets that can be bought and sold on a stock exchange) in the US only launched in 1993, the global ETF market has grown to more than $10T in the short time since.

70 years ago today, city officials in Santa Cruz, California, banned rock 'n' roll to protect its youth from corruption after witnessing a 'provocative' concert the night before.

Human-to-human transmission of hantavirus remains extremely rare, so the 2026 hantavirus cruise ship outbreak doesn't mean we're facing a COVID-style pandemic risk.

Frank Lloyd Wright's houses are historically hard to sell because they're old, subject to local landmark commissions, and often unfashionable

The US first hosted the World Cup in 1994, a tournament that lives in soccer infamy for its poor planning and the murder of Colombian player Andres Escobar, who'd accidentally scored on his own net.

In 1939, baseball star Lou Gehrig delivered his inspirational 'Luckiest Man' speech after retiring due to the health condition that now bears his name.

Fast-casual restaurant Chili's is experiencing a resurgence, with its parent company recently reporting a nearly 32% increase in sales, thanks to passionate Gen Z fans on TikTok.

Most of the observable universe's volume consists of voids and supervoids—enormous regions of space with little to no galaxies, stars, or light.

The Great Salt Lake's distinct dual coloration results from high-salinity organisms that only live in the northern portion and produce a purple protein.

Walt Disney's early film 'Alice's Wonderland' was a groundbreaking innovation in the silent film era

Sony set the standard for cylinder-shaped batteries when it repurposed manufacturing equipment used to make rolls of magnetic recording tape.

20,000 letters to the advice columnist 'Dear Abby' provide insight into prevailing sex, religion, and LGBTQ fears, anxieties, and concerns from the 1950s onward.

Studies suggest when you sleep is as important as how much you get, and syncing with your circadian rhythms may lead to less fatigue and improved long-term health outcomes