The Great Wall of China is not visible from space with the naked eye — it's too narrow relative to its length.

The Petronas Towers were once the tallest buildings in the world.

Some deserts were once oceans.

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

The Dead Sea lies at one of the lowest elevations on land.

The Phoenician city of Tyre was built on an island.

More people live in Tokyo than in the entire country of Canada.

The city of Istanbul spans two continents — Europe and Asia.

The Atacama Desert in Chile is the driest non-polar desert on Earth — some weather stations there have never recorded rain.