Dublinia is a historical recreation museum and visitor attraction in the center of the city. Focusing on the Viking and Medieval history of the city. Dublinia is located in a part of Dublin's Christ Church Cathedral, known as the Synod hall.
Dublinia features historical reenactment, with actors playing the roles of Vikings and Medieval Dubliners (in full costume) and encourages visitors to join in. It has recreations of Viking and Medieval era buildings (houses, etc) and street scenes.
A five-minute walk from the Morrison Hotel and a definite must do when in Dublin.