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
Saint Peter and Paul Cathedral, Lutsk the old church and two towers were added near the corners of new walls. The west tower was square in plan, the east tower octagonal. In general, the new Jesuit church was in the Classicist style. A decree signed by Pope Clement XIV in July 1773 suppressed the Order leading to the closure of the college too. The Commission of National Education became the new owner of former Jesuit church which was soon elevated to a cathedral after the Holy Trinity cathedral on the same street was destroyed by fire and dismantled. The former Jesuit church the became Saint Peter