The National Museum, National Library and National Gallery are located very close to one another, Merrion Street Upper, Dublin 2. All three are worth a visit--they are even free.

In the summer peak season, Dublin's top attractions can get packed. Show up early to beat the crowds.
National Museum of Ireland - Archaeology, Kildare Street, Dublin 2, ? +353 1 6777444, fax: +353 1 6777450). Tu-Sa 10AM-5PM; Su 2PM-5PM, closed Mon, Christmas Day and Good Friday. Archaeology and History. Other locations: Decorative Arts & History at Collins Barrack, Benburb Street, Dublin 7. Natural History at Merrion Street, Dublin 2. Free entrance.  edit
The National Gallery of Ireland, Merrion Square West & Clare Street, Dublin 2 (DART Pearse Station will get you to within five minutes from the Gallery.), ? +353 1 6615133 fax: +353 1 6615372). Mon-Sat 9:30AM-5:30PM (till 8:30PM on Thurs) and Sun 12PM-5:30PM. Closed Good Friday and Dec 24-26. National collection of Irish and European Art. Free entrance.  edit
Waterways Ireland Visitors Centre, Grand Canal Quay Dublin 2 (Waterways Ireland Visitors Centre is easily accessed from the City Centre being only 10 minutes on foot from O'Connell St. Bus numbers 3, 50, 77/77A, 151 stop close to the main entrance. By Dart at Grand Canal station which is located seconds away and the Luas Stop at Spencer Dock which is a mere 5 minutes on foot.), ? 353 01 6777510. 10am-6p. The Waterways Ireland Visitors Centre is an exciting visitor attraction located in Dublin's city centre at Grand Canal Dock just off Pearse Street. The centre is housed in an award winning architectural structure affectionately known as the box in docks situated in the waters of Grand Canal Dock.The centre will bring you on an informative journey of the waterways from the pre Christian period to its modern use. Our exhibit contains child friendly interactives, environmental displays and much more. ?4 Adults ?2 Child ?3 Students/Senior. 

Irish Museum of Modern Art, Military Road, Kilmainham, Dublin 8, ? +353 1 6129900 , fax: +353 1 612 9999). Tu-Sa 10AM-5:30PM (opens 10:30AM on Wed), 12PM-5:30PM on Su and Bank Holidays. Closed on Mon. Summer Late Opening until 8.00PM on Thursdays from 5 June - 18 September.. Modern & contemporary art, formal gardens & cafe. Free entrance..  editThe National Museum, National Library and National Gallery are located very close to one another, Merrion Street Upper, Dublin 2. All three are worth a visit--they are even free.

In the summer peak season, Dublin's top attractions can get packed. Show up early to beat the crowds.
National Museum of Ireland - Archaeology, Kildare Street, Dublin 2, ? +353 1 6777444  fax: +353 1 6777450), [32]. Tu-Sa 10AM-5PM; Su 2PM-5PM, closed Mon, Christmas Day and Good Friday. Archaeology and History. Other locations: Decorative Arts & History at Collins Barrack, Benburb Street, Dublin 7. Natural History at Merrion Street, Dublin 2. Free entrance.  
The National Gallery of Ireland, Merrion Square West & Clare Street, Dublin 2 (DART Pearse Station will get you to within five minutes from the Gallery.), ? +353 1 6615133 , fax: +353 1 6615372). Mon-Sat 9:30AM-5:30PM (till 8:30PM on Thurs) and Sun 12PM-5:30PM. Closed Good Friday and Dec 24-26. National collection of Irish and European Art. Free entrance.  
Waterways Ireland Visitors Centre, Grand Canal Quay Dublin 2 (Waterways Ireland Visitors Centre is easily accessed from the City Centre being only 10 minutes on foot from O'Connell St. Bus numbers 3, 50, 77/77A, 151 stop close to the main entrance. By Dart at Grand Canal station which is located seconds away and the Luas Stop at Spencer Dock which is a mere 5 minutes on foot.), ? 353 01 6777510. 10am-6p. The Waterways Ireland Visitors Centre is an exciting visitor attraction located in Dublin's city centre at Grand Canal Dock just off Pearse Street. The centre is housed in an award winning architectural structure affectionately known as the box in docks situated in the waters of Grand Canal Dock.The centre will bring you on an informative journey of the waterways from the pre Christian period to its modern use. Our exhibit contains child friendly interactives, environmental displays and much more. ?4 Adults ?2 Child ?3 Students/Senior.  
Irish Museum of Modern Art, Military Road, Kilmainham, Dublin 8, ? +353 1 6129900 , fax: +353 1 612 9999), .Tu-Sa 10AM-5:30PM (opens 10:30AM on Wed), 12PM-5:30PM on Su and Bank Holidays. Closed on Mon. Summer Late Opening until 8.00PM on Thursdays from 5 June - 18 September.. Modern & contemporary art, formal gardens & cafe. Free entrance..