The largest desert in the world by area is Antarctica.

The Aztecs built the city of Tenochtitlan on a lake.

Fact #584 · Geography

Vatican City is the world's smallest country — it covers just 0.44 square kilometers.

Fact #3748 · Geography

Greenland is the world's largest island.

Fact #84 · Geography

The Sahara Desert receives less rainfall than most regions.

Fact #330 · Geography

There are places in the ocean deeper than the height of Mount Everest.

Fact #2457 · Geography

Countries with extremely high tax rates sometimes collect less revenue than countries with moderate tax rates.

Fact #2603 · Geography

The Earth's continents were once joined as Pangaea.

Fact #285 · Geography

The Roman navy played a key role in Mediterranean dominance.

Fact #1443 · Geography