Mapping the route options between the Pacific and Atlantic

Mapping the known ports involved in the trans-Atlantic slave trade

Based on historical logs, this interactive maps shows info from various ports of departure and arrival during the height of the trans-Atlantic slave trade.

The world's maritime traffic in real-time

More than 50,000 ships are sailing the high seas on any given day, representing the highest volume pathway for international trade. This real-time traffic provides a visual impression of the scale of ocean-bound commerce.

British Columbia's 'Infinite Coast' is a hidden travel gem

The long expanse of Pacific coast north of the US border includes Victoria, Vancouver Island, the Great Bear Rainforest, fjords, whale watching, and 50 First Nations that manage the coastline. This site presents the region in an engaging interactive format to attract travelers looking for lesser-known areas of natural beauty.

A simple pictorial explanation of ocean geography

Visualizing ocean geographical features, such as a coastal zone, continental shelf and abyssal plain. This article from the US Geological Survey also provides several links to diverse ocean facts.

The Appalachian Mountains blocked east–west boat travel until the Erie Canal

The Appalachian Mountains, spanning from Alabama to Canada, long hindered inland commerce. The Erie Canal created the first reliable water route through the range by leveraging the natural valley of the Mohawk River, revolutionizing trade and migration.

View a map of the distribution of mineral resources on the seafloor

Polymetallic nodules are found in regions near the middle of the Pacific Ocean, along the eastern coast of South America, and along the western coast of Africa, while cobalt-rich crusts span significant portions of the Pacific tropics east of the Philippines. Polymetallic sulfide deposits occur at tectonic plate boundaries, including areas within national jurisdictions.

How did Polynesian wayfinders navigate the Pacific Ocean?

Ancient Polynesian navigators used the sun, moon, stars, clouds, currents, and more to sail the seas. People of Southeast Asia began their voyages to the region now known as Polynesia in roughly 1500 BCE. They would settle a vast area of 15 million square miles, including hundreds of islands, moving from islands due to overpopulation or war. Such voyages dwindled in 1300 CE as societies became more rooted.

Mapping NATO's 32 countries across North America and Europe

See an updated map with the option to learn more about each country's membership and role in the alliance. The map shows the borders of its member countries with extra filters capable of locating its many civilian structures, nonmember partners, positions of missile sites, and more.

How salt, sunlight, and wind drive ocean currents

The Atlantic Meridional Overturning Circulation plays a critical role in regulating earth's climate, but is threatened by climate change. Explore the effects of temperature, density, and salinity on ocean currents in this 13-minute PBS video.

Visualizing the world's food supply chains

The world's food supply chain is complex and lopsided, with much of the world's nutrient-rich food ending up in Europe and North America. This visualization illustrates the paths our food takes around the world, from starchy vegetables in...

The transatlantic cable allowed for communications between North America and Europe

It had significant impacts on just about every industry, including finance. Specifically, the transatlantic cable made it so that real-time financial transactions could take place across the Atlantic, and allowed for much faster sharing of information that increased global market accuracy.

Watch a ship pass through the Panama Canal

Many of the world’s cargo ships are built to be as large as possible while still being able to fit through the Panama Canal’s narrowest locks. The size standard even has a name: Panamax (and, since the canal’s expansion in 2016, Neopanamax). To avoid running against the canal walls, locomotives hold the vessels in place as the chambers are filled and emptied.

Explore Lewis and Clark’s 8,000-mile journey in Google Earth

Follow the Corps of Discovery’s full route from St. Louis to the Pacific and back on Google Earth. Explore key camps, Native encounters, and natural landmarks through satellite imagery and on-the-ground photos.

View a map of America's regional pizza styles

It may all be pizza, but it's not all the same. From California to New York and from Quad City-style to Old Forge, this interactive map of the US lets you see the country's different takes on the classic dish.

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.

Mapping the world's 25 largest stock exchanges

Totaling a market capitalization of $106T (as of 2023), this map identifies the major stock exchanges worldwide on a map, ranking them by total market value. Nearly half of that value is located in the Americas.

View the most turbulent flight routes and airports around the world

Using data from NOAA and the UK Met Office, these maps identify South America as the geographic region with the highest average turbulence. The most turbulent flights in North America are all found in the western United States.

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

Mapping migrations of hundreds of bird species

The birds we see throughout the year are long distance fliers, often traveling over thousands of miles to reach optimal nesting grounds, better feeding, and more. This thorough interactive map tracks over 450 types of bird on their annual migrations, depicting both their route as well as some of the conservation hurdles each species faces. Fly along with your favorite bird here.

The seven major US freight rail companies

The US railroad industry is dominated by seven long-running freight conglomerates. Get the basics on each of these companies with this brief overview.

The Elizabethan pirate hired to find the Northwest Passage

This resource by the Canadian Museum of Natural History explores the life and adventures of Martin Frobisher, an Elizabethan pirate hired to find the then-fabled Northwest Passage, a path across the Arctic Sea that would've allowed for quicker trade between Asia and Eastern Europe. He ventured into arctic waters at least three times, returning to England each time with either fool's gold, captive natives, or fool's gold and captive natives.

Explore the animals that populate the depths of the ocean, from fish and coral in the first few hundred feet, all the way down to the bottom of the Mariana Trench.

Explore a map of every charging station in the US and Canada

An electric vehicle owner's main fear running out of power before getting to their final destination. Using this interactive, users may identify stations and their charger type to map fuel corridors for EV road trips.

See how Britain promoted imperial trade through 1920s propaganda posters

This photo gallery showcases posters from the Empire Marketing Board, created after Canada gained dominion status in 1926. The campaign encouraged Canadians to buy goods from across the British Empire, producing more than 800 posters displayed nationwide.

A $50 bet led to the first coast-to-coast road trip

In 1903, Dr. Horatio Jackson took a $50 wager that he could drive from San Francisco to New York. Soon after, Jackson and his mechanic set out on the cross-country voyage without a map. They arrived in New York 63 days later. The trip cost them $260K in today’s money.

Japan attacked Pearl Harbor largely because it was running out of oil

This video traces how US-led sanctions and Japan’s near-total dependence on imported oil pushed Japanese leaders toward a high-risk plan: seize Southeast Asian oil fields and neutralize the American Pacific Fleet, hoping Washington would negotiate rather than fight.

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.

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.

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

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.

Visualize the path of every solar eclipse from 1900 to 2099 and see what each looks like when observed from different locations on Earth.

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

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.

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

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.

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

Power lines are dotted with large, brightly colored balls to improve the visibility of these thin wires to helicopters and small planes and help prevent potential crashes.

How Amazon operates a 'flywheel' business model, a self-reinforcing cycle that drives continuous growth

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 cockroach is actually from Africa, an apparent hitchhiker aboard ships carrying enslaved people, with evidence suggesting the bug may have arrived in the New World as early as the 1600s.

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

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

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.

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.

The 19th-century painters of the Hudson River School were among the first American romantics, with portraits that displayed the natural beauty of the young country.

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.

For centuries, it was common to sleep in two shifts: a few hours at the beginning of the night, and a longer period beginning around midnight

Volcanoes 'die' when their supply of magma runs out, if they are shifted away from their underlying magma reservoir, or if they get clogged by collapsing or their magma cooling back into rock.

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.

Alzheimer's can lead to brain shrinkage, with an average of around 2% of volume reduction per year