The capital of Northern Ireland, Belfast is a modern city situated in a breathtaking district of mountains, loughs and rivers. The city is rich with history; visit the Belfast Castle, a handsome edifice built in 1870 by the third Marquis of Donegal. A fresco of the city's history can be found in the City Hall, located in Donegal Square. Don't forget to take in the natural wonder of the Botanic Garden and see the Tropical Ravine, Palm House and Ulster Museum.