Northern Ireland is located in northeastern Ireland and is part of the United Kingdom. Belfast is the capital city, and other important cities include Derry and Armagh. The three main rivers are the Foyle, Shannon, and Finn. Both English and Irish are spoken. Famous writer Brian Keenan wrote the books I'll Tell Me Ma and Cradling All Evil. Popular tourist destinations are Tollymore Forest Park, Parliament Buildings, and Saint Patrick's Day celebrations on March 17th. Actors Pierce Brosnan and Liam Neeson, born in Northern Ireland, have starred in films like Mamma Mia, Die Another Day, and The Woman in Black.