Céide Fields on the north coast of County Mayo has been described as the most extensive Stone Age monument in the world.
During the 1930s, local turf cutters became aware of large numbers of stones in regular formations deep beneath the bog.
Modern excavations revealed an enormous and complex network of walled fields, dwelling areas and neolithic tombs dating back almost 6,000 years.
The site has been called “a slow-motion Pompeii” as encroaching bog very gradually enveloped the entire area, driving the inhabitants away, but preserving buildings and objects beneath the marshy ground.
The modern sixty-foot high, three-level visitor centre seen here sits atop a spectacular 110m cliff overlooking the wild Atlantic ocean.