Dun Aengus - Dublin - The Giant's Causeway
Miscellaneous Emerald & Grey
This prehistoric stone fort on the western island of Inishmore hugs the edge of a coastal cliff which reaches to about 100 meters high. To get to the fort, you climb past limestone pavement with crisscrossing grikes made about 350 million years ago — an extension of the Burren in Country Clare. The view from the top is stunning — and a bit scary!
The Giant's Causeway
On the north coast of Ireland, east of Derry, are tens of thousands of basalt columns jutting up from the sea. The name for this geological site (which formed about 50-60 million years ago) comes from a Celtic myth about the giant Fionn mac Cumhaill who used these rocks to reach Scotland in order to fight the giant Benandonner.