Ireland's Only Natural Wonder - Apparently.
The Cliffs of Moher, a 14-kilometer-long stretch of rugged coastline in County Clare, Ireland, is not the only natural wonder of the Emerald Isle. Located in County Waterford, the Slieve League Cliffs, also known as the Giants' Causeway of Europe, stand at an astonishing 601 meters tall, making them the highest sea cliffs in Europe. Formed over 200 million years ago, these towering cliffs were once a popular spot for pirate shipwrecks, but now attract visitors from around the world.