The Giant's Causeway is an area of about 40,000 interlocking basalt columns resulting from a volcanic eruption. It is located on the North East coast about 3 kilometers north of the town of Bushmills in County Antrim, Northern Ireland. It was declared a World Heritage Site by UNESCO in 1986, and a National Nature Reserve in 1987 (by the Department of the Environment for Northern Ireland). In a 2005 poll of Radio Times readers, the Giant's Causeway was named as the fourth greatest natural wonder in the United Kingdom.
