China's Grand Canal, begun in 486 BC, is the longest artificial waterway in the world at 1,776 km.

The Andes mountains were formed by tectonic activity.

Fact #135 · Geography

The world's deepest lake is Lake Baikal in Russia, containing 20% of the world's unfrozen fresh water.

Fact #3401 · Geography

The Caspian Sea is technically the world's largest lake, covering 371,000 square kilometers.

Fact #4260 · Geography

Antarctica is technically a desert — it receives less precipitation than the Sahara.

Fact #3593 · Geography

The London Underground is one of the oldest metro systems in the world.

Fact #1517 · Geography

The deepest lake in the world is Lake Baikal in Russia — it reaches a depth of over 5,300 feet.

Fact #3916 · Geography

The Sahara Desert is roughly the size of the United States.

Fact #154 · Geography

There is a town in Norway called Hell — it regularly freezes over in winter.

Fact #3760 · Geography