Ireland, also known as the Emerald Island, has 4 provinces: Munster, Leinster, Connacht, and Ulster. The capital of the Republic of Ireland is Dublin, while Northern Ireland is part of the United Kingdom. Some notable places mentioned include Newgrange, an ancient prehistoric tomb similar to the pyramids; Dublin, which sits along the River Liffey and is home to Trinity College with its vast library; the Rock of Cashel, an important medieval cathedral visited by St. Patrick; and the Cliffs of Moher near Galway, which rise over 600 feet (198 meters) above the sea. Ireland offers scenic landscapes like the Burren with its surreal limestone terrain