Tourism in the Republic of Ireland on were built by them. As Dublin Airport is located just outside the city, most international visitors to Ireland begin their stay here. Among the main attractions in Dublin are Dublin Castle, the seat of British rule in Ireland until 1922, Phoenix Park, one of the largest inner city parks in the world, The General Post Office, one of Ireland's most famous buildings due to the 1916 Easter rising, Kilmainham Gaol, a former prison turned museum that held and executed the rebels of the 1916 Rising and Trinity College, where the Book of Kells and the Book of Durrow are
Easter, 1916 of Irish history: <poem> "I write it out in a verse— MacDonagh and MacBride And Connolly and Pearse Now and in time to be, Wherever green is worn, Are changed, changed utterly: A terrible beauty is born." </poem> The extent to which Yeats was willing to eulogize the members of the Easter Rising can be seen in his usage of "green" (78) to commemorate said members above, even though he generally abhors the use of the colour green as a political symbol (Yeats's abhorrence was such that he forbade green as the color of the binding of his books). In