The National Museum of Ireland is the main Irish national museum, with locations in Dublin and throughout the country, dedicated to history, archaeology, decorative arts, and natural heritage. Founded in 1877, the museum houses extraordinary collections that tell the story of Ireland from prehistoric times to the present day.

The Archaeology branch, located on Kildare Street in Dublin, preserves unique artifacts such as the famous Bronze Age gold treasures, the Ardagh Chalice, the Derrynaflan Hoard, and the mummified bodies from the bogs, fascinating testimonies of ancient Ireland's life and rituals.

The Decorative Arts & History Museum, housed in Collins Barracks, showcases weapons, military uniforms, silverware, ceramics, textiles, and a section dedicated to Ireland's social and political history. The Natural History branch, known as the "Dead Zoo," houses a zoology collection with specimens of Irish and international fauna. Lastly, the Country Life Museum, located in Castlebar, explores Irish rural life between 1850 and 1950.

Admission to the National Museum of Ireland is free, making it a must-visit for those exploring Dublin and wanting to discover the country's rich cultural and natural heritage.