Giant's Causeway (Clochán an Aifir in Irish) is a natural phenomena situated in County Antrim, Northern Ireland. It consists of over 40 thousand mostly hexagonal basalt columns, the result of an ancient vulcano eruption. Because of its surreal appearance the site was an inspiration for numerous myths and legends.
I do collect Unesco cards sent from their country of origin - so I will be looking for a UK card too :) Sadly the lovely stamps have been cancelled by pen, something that i've already heard of when it comes to Ireland...but luckily i have these on other postcards too! xD
Many thanks to hootnoodle!