St Paul's Cathedral familiar with the unique octagonal lantern tower over the crossing of Ely Cathedral, which spans the aisles as well as the central nave, unlike the central towers and domes of most churches. Wren adapted this characteristic in designing the dome of St Paul's. In section St Paul's also maintains a medieval form, having the aisles much lower than the nave, and a defined clerestory. The most notable exterior feature is the dome, which rises to the cross at its summit, and dominates views of the City. The height of 365 feet is explained by Wren's interest in astronomy. Until the
Cathedral of the Annunciation of Our Lady Orthodox cathedral. St Sophia's has since become a parish church. Today, the cathedral is internationally recognised as the seat of Greek Orthodoxy in Australia. It is home to the Greek Orthodox Archbishop and provides service for the most significant events within the church. Positioned on a visually prominent site, the cathedral was built in the Colonial Decorated Gothic style. A sandstone construction with slate covered timber roof, the building also consists of a square tower surmounted by an octagonal turret, with a nave, two wide aisles, chancel, two vestries and two porches. It has been noted that the landmark design