Giant’s Causeway
One of Northern Ireland's most popular tourist attractions, the Giant's Causeway Bay won its name, from 40,000 basalt columns, interlock to form suitable monster is what sidewalk.
60 million years ago, stone, mostly hexagonal to form underground lava flow cooled into a 39 feet high with a diameter of 18 inches formation. This is a relatively recently, about 15,000 years ago, the soil erosion around the stones at the beach and into the ground visible.
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