The former jail of many of Ireland’s revolutionaries, in use between the 1780s and 1920s, saw hundreds of men suffer and die for their belief in independence in the uprisings of 1798, 1803, 1848, 1867, 1916 and 1922. A museum covers the early 20th-century political history of Ireland, prison memorabilia and a guided tour. It takes you around the dungeons, tiny cells, the chapel where Joseph Plunkett was married three hours before his execution, and the grim yard where Connolly, Plunkett and 15 other leaders of the 1916 uprising were executed. Visits by guided tour only; arrive early to ensure you get a place. Apr-Sep: daily 9.30am-6pm; Oct-Mar: Mon-Sat 9.30am-5.30pm; Sun 10am-6pm. Last admission 1 hour earlier. Adult €6, child €2.