Wikipedia
Cave Hill, sometimes spelt as Cavehill, is a basaltic hill overlooking the city of Belfast, Northern Ireland. It forms part of the southeastern border of the Antrim Plateau. It is distinguished by its famous 'Napoleon's Nose', a basaltic outcrop which resembles the profile of the famous emperor Napoleon. Cave Hill spelt as Cavehill is also the name of an electoral ward in Belfast. Previously it was known as Collinward Mountain, and more historically as Ben Madigan, which is derived from the Irish Beann Mhadagáin, meaning "Madagán’s peak"—so named after a king of Ulster called Madagán who died in 856AD.
All of Belfast can be seen from its peak, as can the Isle of Man and Scotland on clear days. Like Arthur's Seat in Edinburgh, it lies just a few miles from the centre of a major city.
Cave Hill is thought to be the inspiration for Jonathan Swift's Gulliver's Travels. Swift imagined that the Cave Hill resembled the shape of a sleeping giant safeguarding the city.