Stone Steps of the Giant's Causeway
On the coast of Northern Ireland, thousands of tall stone columns stand beside the sea. Their tops form a bumpy floor of stepping stones that seems to lead right into the waves. This place is called the Giant's Causeway.
An old story says that a giant built the path so he could walk to Scotland. Scientists tell a different story. Millions of years ago, hot melted rock called lava poured out of the ground there. It spread over the land in a thick layer and then began to cool.
As the lava cooled, it shrank, and it cracked. Cracks formed in neat patterns, and most of them made shapes with six sides, much like the cells of a honeycomb. When the rock hardened fully, it was split into columns packed tightly side by side.
Over time, waves wore away the softer land around the columns and left them standing. Now visitors climb on them carefully, and they notice that some columns are taller and some are short and low. The short ones make a staircase down to the sea.
The Giant's Causeway shows that Earth sometimes builds its own works of art.