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Places

The Largest Aquariums In The United States

Seven of the largest aquariums in the United States, ranked by water capacity, with Georgia Aquarium in Atlanta leading them all.

Forests

The National Forests With The Most Bighorn Sheep

These four national forests are where bighorn sheep roam, including rare and endangered Sierra Nevada populations in the wild.

Places

This Vermont Scenic Byway Is The Road Trip Of A Lifetime

A four-day drive down US Route 5 on Vermont's Connecticut River Byway, with stops in St. Johnsbury, Windsor, and Brattleboro.

Rivers

The Busiest Cargo Rivers In America

Grain, coal, crude and containers move by the hundreds of millions of tons on these waterways. See which US rivers carry the most cargo and how they do it.

County

The Counties Separated From Their State By Water

Kalawao, Nantucket, San Juan, and the Northwest Angle: these US counties are cut off from their own states by oceans and lakes.

Oceans

How Many Seas Are There In The World?

Counting the world's seas is harder than it sounds. Some lie inside other seas, one has no shoreline at all, and a few of the most famous are lakes.

Animals

Saharan Horned Viper

Saharan Horned Viper facts, from the scale horns above its eyes and its sidewinding gait to its sand-buried ambush hunts across the deserts of North Africa.

Space

What Would Happen If Earth's Magnetic Field Flipped

The question of Earth's magnetic field flipping is less a matter of "if", and more a matter of "when." Here's what would happen when it does.

Oceans

What Would We Find If We Drained The Oceans

Drain Earth's oceans and the Bering land bridge, the abyssal plains and the Mariana Trench are what the seafloor leaves behind.

Ancient World

Why Was The Nile So Important To Ancient Egypt?

Without the Nile River, Ancient Egyptian civilization likely wouldn’t have existed as it formed the political, economic, and cultural backbone of Ancient Egypt.

Ancient World

How Rome Conquered the Mediterranean

Rome's conquest of the Mediterranean rested on a war-centered culture, adaptable legions, and a knack for drawing conquered peoples into Roman society.

Rivers

The Coldest Rivers in North America

The Coldest Rivers in North America include the Yukon, Mackenzie, and Copper, where glaciers, permafrost, and subarctic winters keep the water near freezing.

Animals

Proboscis Monkey

Proboscis Monkey males grow a nose that can hang below the mouth, and it works as a resonance chamber. The biggest-nosed males hold the most females.

Wildlife By Place

How Far South Moose Live In The United States

Wild moose live at the latitude of San Francisco, Seoul and Athens. How far south moose get in the US, and the trick that makes 37 degrees north possible.

Animals

Olive Python

Olive Python is Australia's third-largest snake, and it hunts by lying submerged at a waterhole and striking upward at animals that come down to drink.

Space

Which World Has The Most Extreme Temperature Swing?

There are practically infinite planets in the universe. Needless to say, many of them have conditions that humans would consider extreme.

Ancient World

How Diocletian Rebuilt The Roman Army

Few figures in the history of Ancient Rome made more sweeping and lasting changes than Diocletian after the Crisis of the Third Century.

Travel

6 Underrated Oregon Towns Worth the Drive in 2026

Six underrated Oregon towns worth a trip in 2026, from Warrenton's shipwreck beach and Manzanita's surf to Newberg wineries, The Dalles, Sisters, and Ashland.

GDP

The Richest Countries In Africa 2025

Africa’s richest countries fall into three types: island economies, hydrocarbon exporters, and diversified markets, shaped by resources and policies

Climate

The Difference Between A Hurricane, A Typhoon, And A Cyclone

A hurricane, a typhoon and a cyclone are the same storm under three names. Which one you get depends on the ocean, and a date line crossing proves it.

Space

Why Lucy Is Visiting Eight Asteroids Instead Of One

NASA's Lucy spacecraft is the first mission to explore Jupiter's Trojan asteroids, ancient bodies that may reveal how the solar system's giant planets formed.

Ancient World

Which Roman Generals Lost Battles They Should Have Won?

Several Roman generals lost battles that they should have won and exploring such defeats helps us gain a more holistic understanding of Ancient Rome.

Mountains

The Mountains That Are Still Growing

Some mountains are still rising today, pushed upward by tectonic forces even as erosion and melting ice reshape their peaks.

Mountains

How The Himalayas Compare To The Rockies

How the Himalayas and Rockies compare in height, length, age, glacier ice, earthquakes, and the rivers they feed, from Everest to the Continental Divide.

Travel

7 Small Towns in Pennsylvania with the Best Downtowns

In Pennsylvania, downtown Wellsboro glows under gas lamps, Lititz twists pretzels by hand, and Hershey lines Chocolate Avenue with Kisses, 7 towns in all.

Space

Why Evidence Suggests Dark Energy Is Weakening

Although our leading minds have barely more than a theoretical grasp on what dark energy is, it appears to be weakening.

Mountains

The American Power Plants Built Inside A Mountain

From Tennessee's Raccoon Mountain to Washington's Boundary Dam, several U.S. power plants run their turbines deep inside excavated mountain rock.

Travel

7 Underrated California Towns Worth the Drive in 2026

Seven California towns worth the detour, from Pioneertown and Solvang to Ojai, Tiburon, Sonoma, Solana Beach and Ramona in the San Diego back country.

Stories

The Island That Changed My Mind About Toronto

A ten-minute ferry from downtown Toronto reaches Center Island, with sandy Great Lakes beaches, a pier, rental bikes and the oldest lighthouse.

Travel

11 Underrated Ohio Towns Worth the Drive in 2026

11 Underrated Ohio Towns Worth the Drive in 2026. Ride a horse-drawn canal boat in Coshocton, see Sugarcreek's cuckoo clock, and find Christmas in Medina.

Mountains

The Most Climbed Mountain In America

Mount Monadnock in New Hampshire draws around 125,000 climbers a year, with a 3,165-foot summit most hikers reach in a few hours and views across six states.

GDP

The Richest Countries in North America 2026

In 2025, the U.S., Canada, and Panama lead North America in GDP per capita, reflecting diverse economic strengths and strategies.

Industries

The States With More Farmland Than People

Eight US states have more farmland than people, with farm operations covering over half their land and fewer than 100 residents per square mile.

Geography

How Much of America Drains Into the Mississippi River?

The Mississippi-Atchafalaya basin drains about 41% of the contiguous US, over 1.245 million square miles, and the Missouri subbasin alone supplies 43% of it.

Geography

How Much Of The World's Fresh Water Sits In North America?

North America holds roughly one-quarter of the world’s fresh surface water, with the Great Lakes alone accounting for about 21% of the global supply.

GDP

The Richest Countries In The World 2026

The richest country in the world is Luxembourg, followed by Singapore and Ireland, ranked by GDP per capita in PPP values, provided by the IMF for 2025.

Geography

How Big Lake Superior Is Compared To Entire States

Lake Superior spans 31,700 square miles, larger than 10 US states by total area and nearly the size of South Carolina, plus a 2,726-mile shoreline.

Geography

What Is The Thailand-Cambodia Border Dispute

A border drawn more than a century ago still divides Thailand and Cambodia, with disputed temples and territory keeping tensions alive today.

Geography

How Big Alaska Is Compared To The Lower 48

Alaska is one fifth the size of the Lower 48 and bigger than Texas, California and Montana combined. Why the maps you grew up with got it wrong twice.

Religion

African Countries With Islam As The Religion Of The Majority

In 19 African countries, Islam serves as the religion of the majority.