Photo of: North of Ireland: Antrim: Giant's Causeway. A detail photograph of the basalt columns at the Giant's Causeway, showing the (mostly) hexagonal shape of the columns and how they interlock.
The Giant's Causeway is the jewel in the crown of the North Antrim Coast. It is a World Heritage site and is therefore ranked alongside Mount Everest and the Giant Redwoods of California for its importance to humankind.
Volcanic activity helped Finn Mc Cool forge this wonder of the World some 60 Million years ago.