Probably the athlete Mary Peters.
The most famous mountains in Ireland is the mountains of Mourne. These mountains are in northern Ireland. The Mourne Mountains are the most visited.
Bushmills Whiskey is the most well known drink from Northern Ireland.
The Giant's Causeway would be the most famous.
The Giant's Causeway.
There are many landmarks in Northern Ireland. Probably the most famous is the Giant's Causeway, which is on the north coast of county Antrim.
It has the largest lake in Ireland. It has the most easterly point in Ireland, but not the most northerly point, despite its name. The world famous Giants Causeway is in Northern Ireland.
There is the border between the Republic of Ireland and Northern Ireland, in the northern part of Ireland. The most northern point on the island of Ireland is actually in the Republic of Ireland, not Northern Ireland, as you will see at the map at the link below. Around the northern coast, is the Atlantic Ocean.
Christianity is the dominant religion in Northern Ireland. Most people in Northern Ireland are members of a Protestant church, such as Presbyterians or Anglicans, who are members of the Church of Ireland.
The most famous would be Wayne McCullough, an Olympic medal winner and Dave"Boy" McCauley a former World flyweight champion.
Northern Ireland has had many agreements. The one you may mean is the Belfast Agreement, commonly known as the Good Friday Agreement. It was signed in 1998. It is the most famous one but there have been others.
There is lots in Northern Ireland. There is villages, towns and cities. There are mountains, rivers, lakes and valleys. One of the most famous things in Northern Ireland is the Giants Causeway, a strange formation of pillars of basalt, hexagonal is shape. There are lots of galleries and museums. The Titanic was built in Belfast, so there is a museum to it there. There is so much more in Northern Ireland, far too much to mention.
Most of the Irish province of Ulster is in Northern Ireland. 6 of its 9 counties make up Northern Ireland, with the other 3 being in the Republic of Ireland.