Engineering the Overseas Highway connecting the Florida Keys

How the US built the Interstate Highway system

As late as World War II, it took a well-prepared motorist roughly 10 days to cross America from coast to coast in a car. That all changed when the nation undertook its biggest public infrastructure project in 1956, the National Interstate and Defense Highways Act, initiating a 36-year, $114B mission to lay 41,000 miles of roads across America. Watch a smart overview here.

The Erie Canal runs 363 miles from Albany to Buffalo

Mostly using the low elevations of the Mohawk River Valley, the canal project connected the Great Lakes to the Atlantic seaboard for the first time. This site has a series of old and new maps of the canal.

Learn about the construction of the undersea fiber optic cables carrying internet data

Over 750,000 miles of fiber-optic cables run along the seafloor, serving as a freeway for the Internet's data. Despite subsea cable projects costing hundreds of millions of dollars, depending on the length of the cable, it remains the fastest and most cost-effective way to send information.

How the Golden Gate Bridge was constructed

San Francisco's Golden Gate Bridge is one of America's most iconic structures and is considered to be an engineering marvel. Built in 1930's, before the advent of modern construction technology, the structure was considered impossible by contemporary standards.

Disney World was originally known as the 'Florida Project'

Between 1964 and 1965, Disney quietly bought over 27,000 acres under fake names to keep prices low. But when the Orlando Sentinel exposed the scheme, Disney had to go public—forever changing Florida’s tourism industry.

Before the Panama Canal, there was the Panama railroad

The first ship to cross the isthmus of Panama went not by sea but by land: The paddlewheel steamship Explorer was taken apart and transported by rail, an effort that generated “more trouble than profit,” according to one account.

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.

The 52-mile marvel of engineering inside Glacier National Park

Glacier National Park is home to over one million acres of natural beauty, but it also includes 52 miles of a manmade miracle in Going-to-the-Sun Road, which takes drivers on a majestic tour through some of the park's most breathtaking views. This brief history and photo gallery allows you to gain an appreciation for the incredible engineering behind the road’s construction.

Mapping the route options between the Pacific and Atlantic

This map shows some of the alternative trade route options that are available to shipping companies, from overland routes that rely on railways to transport goods coast-to-coast, to Arctic Ocean passages.

The wild, early history of the tunnel across the English Channel

Britain and France today are connected by the Chunnel—a tunnel bored roughly 120 feet under the seabed of the notoriously choppy English Channel, which opened in 1994. The dream of integrating Britain with the rest of the continent this way began much earlier, with daring, physically impossible plans proposed as early as the 19th century. Check out the earliest plans here.

A Florida nuclear power plant canal system hosts the highest density of crocodiles in North America

Biologists have become regular fixtures at Turkey Point Nuclear Plant, where crocodiles found refuge after Florida's population boom pushed them out of coves and mangrove swamps. Teams working on the plant have done their part to modify the land and help the species thrive.

Browse a list of the most important invention from each state

From Alabama's electric hearing aid and Idaho's television to Washington's artificial heart and Wisconsin's space suit, this map highlights technological breakthroughs with outsized impacts from each US commonwealth. The District of Columbia is also featured as the state of origin for the telegraph and Morse code. (Some readers may experience a paywall.)

Multiple legal pathways exist for immigrating to the United States

This comprehensive guide outlines various routes to US immigration, including family-sponsored and employment-based visas, as well as humanitarian protections. Navigate the complex American immigration system and understand the options available to prospective immigrants seeking legal entry.

Coastal vacation destinations were developed with railroad companies

The American vacation developed as the country expanded its railroad infrastructure in the late 1800s, with businessmen positioning coastal enclaves like Coney Island and Atlantic City as affordable respites from the country’s urban centers.

Hikers can walk through Maya routes on Mexico’s first long-distance trail

The Camino del Mayab is a 68-mile trail west of Cancún that follows ancient Maya paths and modern railways. Built in collaboration with local Maya communities, it promotes Indigenous culture, preserves heritage, and supports community-based tourism along the route.

Small elevation differences drastically protect homes in hurricanes

The construction of seaside homes has long involved building residences on elevated stilts, but this feature adds costs—and some elevated homes still fail. Explore the engineering behind the ideal height of a hurricane-proof building.

Dr. William Gorgas eradicated yellow fever in Panama, crucial to canal construction

The disease was one of the factors hampering the French effort to build the canal. Gorgas' experience elsewhere in the Caribbean had taught him that good drainage and quaranting patients were essential, and he would eventually apply mosquito prevention tactics on a mass scale.

US–Cuba contentious relations began long before the Cold War

Long before the revolution and missile crisis, US involvement in Cuba stretched back over 150 years—rooted in slavery, sugar, and shifting imperial ambitions. This short video traces how cycles of intervention and neglect shaped the island’s modern history.

One in five 16th century Spanish ships sank while crossing the Atlantic

Despite the incredibly high rate of catastrophic wrecks, during the Age of Exploration Spanish investors continued to fund voyages. Here, economists break down the incentives that led to increased risk, including short travel seasons and the propensity to overload ships.

Jefferson sent Lewis and Clark to map, trade, and secure the West

Beyond seeking a water route to the Pacific, Jefferson tasked the Corps of Discovery with mapping the new Louisiana Territory, cataloging its resources, and establishing trade with Native nations.

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

Check out this interactive 3D animation of a virtual renewable energy-powered island

The US Department of Energy’s Renewable Energy Discovery (REDi) Island invite explorers to discover clean, renewable energy options by navigating a virtual island filled with energy efficient power generation and desalinization technologies.

Where the US’s plastic recycling is discarded

The US ships over a million tons of plastic waste overseas each year. A short video explainer from USA Today shows a breakdown of what really happens to America's recyclables.

The history behind New Orleans' drive-thru daiquiris

New Orleans attracts millions of annual visitors with its freewheeling drinking culture, reaching its apex during the weeks-long Mardi Gras celebration. But even the most intemperate tourists might be confused by the city's drive-through daiquiri stands. This resource offers a brief history of the quirky staple and explains how it has survived changes in the law.

The engineering underlying the electric grid and why it needs to be modernized

The system includes generators for producing electricity and millions of miles of transmission and distribution lines to transport the energy. The substantial increase in the number of electronic devices and electrical demand since the construction of much of the grid in the mid-1900s has strained infrastructure, requiring continuous upgrades and massive investments in new construction.

As of 2025, the longest lightning bolt in the world spanned several states

Although the average bolt measures less than 16 kilometers (10 miles), the 2017 "megaflash" spanned 829 kilometers (515 miles) from eastern Texas to Missouri. Severe thunderstorms are common in the region, where warm, humid air from the Gulf collides with cool, dry air from the north, generating atmospheric instability.

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

Explore fun facts from the USPS, including unique post office buildings, a stamp that traveled past Pluto, and more.

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

Discover the catastrophic consequences of a failure of the US electrical grid—something that is more likely than many Americans think.

Hurricanes, which rely on air consistently spinning in the same direction, cannot cross the equator because air curves in opposite directions north and south of it.

The US Constitution is widely regarded as the longest-standing written national constitution still in force—see how it has influenced rights worldwide.

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

This real-time tracking of the hantavirus cruise ship outbreak in May 2026 offers a unique glimpse into the global reach of the outbreak and whether the virus sickened passengers and their communities around the world.

The idea for the Federal Reserve was conceived in secret in 1910—with bankers donning duck hunt gear for disguise while traveling to a remote country club on Georgia's Jekyll Island

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

Before the current East Wing ballroom project, only two White House renovations in the past 100 years cost more than $10M.

Explore an interactive map of battles from the American Revolution, along with detailed summaries of each engagement

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.

Long before Major League Baseball began allowing instant replay for balls and strikes, an umpire reluctantly used the technology to determine whether a hit was a home run, a move that inadvertently ushered in a new era for the sport.

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

When you complete a CAPTCHA on a website to prove you are human, you may be unknowingly training algorithms for self-driving cars, whose systems require training data to help identify crosswalks, bicycles, and other outdoor objects.

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

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.

Watch this video that uses Lego bricks to explain how venture capital works.

For centuries, Niagara Falls has been a magnet for daredevils seeking to conquer one of nature's most powerful wonders, with its 200-foot drop and water rushing at 32 feet per second with 280 tons of force.

See how Budweiser's famous Clydesdales spend their days at Warm Springs Ranch, where roughly 70 to 80 of the beer brand's giant horses can be found at any given time.

A Yale student wrote a profound essay about the consulting industry's influence on elite college students that was published in a book of her writing after she died in a post-graduation car accident.

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.