Giant's Causeway
Northern Ireland
About 40,000 interlocking basalt columns, most of them hexagonal, formed by an ancient volcanic eruption on the north coast of County Antrim. It has been a UNESCO World Heritage Site since 1986.
Northern Ireland
About 40,000 interlocking basalt columns, most of them hexagonal, formed by an ancient volcanic eruption on the north coast of County Antrim. It has been a UNESCO World Heritage Site since 1986.