The deepest point on land (below sea level) is the Dead Sea shore at −430 meters.

Iceland sits directly on the Mid-Atlantic Ridge and is actually spreading by 2.5 cm per year as two tectonic plates diverge.

The tallest waterfall in the world is Angel Falls in Venezuela.

The largest island in the world is Greenland.

The Sydney Harbour Bridge is one of the largest steel arch bridges.

Ancient civilizations often formed near rivers.

The Maldives is the world's lowest-lying country, with an average ground level of just 1.5 meters above sea level.

The Pangaea supercontinent existed before breaking apart.

The Nile River flows northward into the Mediterranean Sea.