In the Synod Hall, linked to Christ Church Cathedral by an arch, an exhibition, Dublinia, reviews the early centuries of local history (1170-1540) using objects loaned by the National Museum, a model of the town (on the upper floor), plus reconstructions of the Wood Quay docks and a medieval merchant's house. From the top of St Michael's Tower (96 steps) there is an attractive panoramic view of the city.