Ireland, Giants Causeway in Northern Ireland. Check out the natural hexagonal basalt columns, which were formed during a volcano eruption 60 million years ago. The basalt columns appear on the other side of the channel as well in Scotland.
TRAVEL TO IRELAND 32 Counties of Ireland. Home to craggy cliffs and windswept valleys, to ancient castles and modern cities and roads that unfurl like ribbons, Ireland is uncommonly rich with both natural wonders and manmade attractions.