National Slate Museum - Civilised close-up exploration of the largest working waterwheel in mainland Britain. - http://www.museumwales.ac.uk/slate/
National Museum Cardiff - Details of collections and events. - http://www.museumwales.ac.uk/cardiff/
National Roman Legion Museum - Vividly portrays the story of the conquest and occupation of Wales by the Romans and displays the finds from the nearby auxiliary fort of Segontium, one of the most famous in Britain. - http://www.museumwales.ac.uk/caerleon/
National Museum Wales - Details of collections, research, and events, along with specific information about the various constituent institutions. - http://www.museumwales.ac.uk/
National Screen and Sound Archive of Wales - Archive aiming is to preserve, promote and celebrate the sound and moving image heritage of Wales - http://screenandsound.llgc.org.uk
Narrow Gauge Railway Museum - Lists current exhibits, photographs and visitor information. - http://www.talyllyn.co.uk/ngrm/