Being in Dublin was an amazing experience. This city breathes history. There's history everywhere and there are lots of museums, parks, and galleries telling you it's history. One of this museums is National Museum. It has such a big collection of artefacts (including a Viking ship replica) it was divided between two different places: the Kildare Street Builind (represented on the photo) and Collins Barracks.
Kildare Street Building is history for itself. It's a big ancient building really imponent. When you enter there you enter a big hall well ornamented and with different small "shops" where you can buy sorts of gifts and where you can get a museum map with information about the museums various exhibition rooms.
Inside it you have different exhibitions where you can see celtician artefacts, viking artefacts, and much older artefacts like weapons and materials used by Neanderthal men.
There are many rooms full of this. Artefacts from Egypt, Europe, and other places in the world. An entire collection about Vikings and Celtic people, it tells not just Ireland history but humans history. All them are identified and has the date it's from.
The other part of the collection is at Collins Barracks and tells the most recent history.
Both places are easy to find. Kildare Street Building is south of the Liffey a few minutes south of Temple Bar. And Collins Barracks is also south of Liffey near Temple Bar and a few minutes walk from Kildare Street Building. National Museum is also in every touristic map and you can find these maps on the ariport, on Dublin Touritic Center, and all around the city. It's also on the touristic buses route.
It's really cool and a very good place to visit if you like history and historical artefacts.