This award-winning museum tells the story of Dublin over the last century via memorabilia, photographs and artefacts donated by the general public. The impressive collection, spread over the rooms of a handsome Georgian house, includes a lectern used by JFK on his 1963 visit to Ireland and an original copy of the fateful letter given to the Irish envoys to the treaty negotiations of 1921, whose contradictory instructions were at the heart of the split that resulted in the Civil War.

　　There's a whole room on the 2nd floor devoted to the history of U2, as well as the personal archive of Alfred 'Alfie' Byrne (1882–1956), mayor of Dublin a record 10 times and known as the 'Shaking Hand of Dublin'. Visit is by guided tour, which goes on the hour every hour. The museum also runs the Green Mile walking tour of St Stephen's Green.