The Giant’s Causeway, the “Dam of the Giants”, is unique. More than 40,000 interconnected hexagonal basalt columns extend far into the sea. They are remnants of a volcanic eruption 60 million years ago.

The Giant’s Causeway, the “Dam of the Giants”, is unique. More than 40,000 interconnected hexagonal basalt columns extend far into the sea. They are remnants of a volcanic eruption 60 million years ago.