Ireland is an island in north-western Europe which has been divided politically since 1920. Most of the island is made up of Ireland (the Republic of Ireland). The remainder is Northern Ireland, which is part of the United Kingdom. An uncommon geological richness and the warming effect of the Atlantic produce an astonishing diversity of terrain on this lovely island, which is splashed throughout with lakes and primeval bogland. Ireland also adds further interest to the landscape through the sacred associations of so many of its physical features.