Hello, today I\'m going to tell you about Newgrange. This is the oldest building in Ireland, this was made of priming, rock, clay approximately in 3100 BC. There is a quite long hallway leading to a ward inside the building. The most probably the hallway was used as a grave. One of characteristics of Newgrange is still waterproof. Not a single drop can be leaked inside. Other epic thing of this building is the entrance of a grave is located in this way: when winter comes, rays of sun fall down in the middle of room lighting everything around.