About a 20-minute drive from Belfast is the important town and harbor of Carrickfergus, home to the imposing Carrickfergus Castle. This Norman castle, one of the best preserved medieval buildings in Ireland, has seen enemies for over eight centuries. Close to the coast and overlooking the city, the fortress remains intact and the reconstructed lobby is a treat, especially for children. You can pick up a guide at the Visitor Center and explore the interior and walls in peace. Nearby is the Andrew Jackson Center, the House of the Ancestors, reinvented by the 7th President of the United States.