Geography

What’s the World’s Oldest (and Deepest) Lake?

You may not know much about Lake Baikal, but maybe you should: The world's oldest existing freshwater lake on Earth reaches far deeper than any other lake on the planet, and is home to an incredibly diverse ecosystem. Check out these fascinating facts.

7 of the World’s Newest Cities

The world’s oldest cities — the likes of Athens, Byblos, and Jericho — have been around for millennia. While these cities still stand proudly, the global landscape is changing rapidly. In response, several nations have built meticulously planned, high-tech cities that signal the future of urbanization. Discover seven of the world’s newest cities.

Geography
Which States Have the Highest and Lowest Elevations?

From the Rocky Mountains soaring high over Colorado to the lowland bayous of Louisiana, the average elevation of each state varies widely, reflecting America’s geographical diversity. Discover which states have the highest and lowest average elevations.

Geography
These Are America’s 7 Largest Islands

As the third-largest country in the world by area, the United States is blessed with a dazzling array of geological features — including over 18,000 islands. They range from small, tropical keys to vast mountain and volcano-clad landforms. Discover the seven largest islands in the U.S.

Geography
What Are the World’s Longest International Borders?

The majority of international borders are, at most, a few hundred miles long, and the shortest measures just 260 feet. But on the opposite end of the spectrum, some borders extend for several thousand miles. From North America to the far reaches of the Eastern Hemisphere, these seemingly endless international boundaries form a vast divide between nations.

Geography