Giant's causeway in Northern Ireland. Oneof most unique rock formations in the world. The rocks are formed into 6 sided geometric shapes; also featured in 'Game of thrones' tv show. There is an old Irish folklore that goes something like this. An Irishman and a scotsman got into an a dispute of how far the stones go, would they actually reach from North Ireland to Scotland? To prove his point the Irishman walked the stones all the way to Scotland, punched the Scotsman in the face and walked back.