Columnar basalt lava at Giant's Causeway, UNESCO World Heritage Site, County Antrim, Northern Ireland, United Kingdom, Europe

travel destination photography horizontal colour image europe united kingdom outdoors day unesco world heritage site unesco northern ireland county antrim giant's causeway columnar basalt lava rock rock rock formation physical geography two people side view full length men women walking natural landmark geology famous place irish culture european typically irish irish traditionally irish unesco world heritage sites world heritage site world heritage sites topography landmark place of interest tourist destination travel outside colour color image color