Belfast Castle is located in the Cave Hill area of north Belfast. It was built in the 1860s and is one of the city's most famous landmarks. For generations, Cave Hill has been synonymous with Belfast, with its imposing outline visible throughout the city. The landmark, named for the five caves located on the side of the cliffs, contains a wealth of natural, archaeological and historical features, including Belfast Castle. Its most famous feature, known locally as Napoleon's Nose, is believed to have been the inspiration for Jonathan Swift's novel, Gulliver's Travels. The park is home to the Cave Hill Adventurous Playground, archaeological sites, Visitor Information Area in Belfast Castle. The estate contains landscaped gardens and mature mixed woodland and offers superb views of the city from a variety of vantage points. It is home to many different species of wildlife, including long-eared owls, sparrowhawks and Belfast's rarest plant; the town hall clock.

Parliament Buildings is home to the Northern Ireland Assembly, the legislative body for Northern Ireland established under the Belfast Agreement 1998 (Good Friday Agreement). Built in 1921 at a cost of nearly £1.7 million, it was designed to house the newly formed Government of Northern Ireland and was officially opened on 16th November 1932 by the then Prince of Wales, on behalf of King George V.