Irish Museum of Modern Art

"Situated within the imposing 17th-century Royal Hospital Kilmainham, IMMA is an impressive setting for modern art, one with a cobblestoned courtyard, gardens, and pretty benches overlooking the grounds. The collection itself consists of more than 3,500 pieces, with about 250 works on display at any given time. Although IMMA is a bit outside the city center—about a 30-minute walk from Dame Street—you can combine it with a visit to the Kilmainham Gaol, which is 15 minutes away by foot." - Nicola Brady