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
Centenary of the Easter Rising Taoiseach Enda Kenny laid a wreath. Silver and gold commemorative coins to mark the centenary, designed by Michael Guilfoyle, went on sale on Monday 4 April. They were only made available to collectors, and did not go into general circulation. On Sunday 24 April, events occurred to mark the centenary date of the start of the Rising. President Higgins, Taoiseach Kenny, members of the Government, Oireachtas and judiciary attended a ceremony at Arbour Hill, where a requiem Mass was overseen by the Roman Catholic Archbishop of Dublin Diarmuid Martin. The graveside of the executed leaders hosted an interfaith ceremony and