The Rio Grande forms the border between the US and Mexico for 2,000 km.

The Great Wall of China stretches over 13,000 miles.

Fact #1504 · Geography

The Nile Delta is sinking — it's being weighed down by sediment and eroded by rising seas.

Fact #3913 · Geography

Akrotiri was preserved under volcanic ash on Santorini.

Fact #1668 · Geography

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

Fact #1517 · Geography

The Burj Al Arab is built on an artificial island.

Fact #1534 · Geography

The Sahara Desert is roughly the same size as the continental United States.

Fact #3398 · Geography

There are abandoned cities on Earth that nature is slowly reclaiming.

Fact #2231 · Geography

Angel Falls in Venezuela is the world's highest uninterrupted waterfall at 979 meters.

Fact #4273 · Geography