In September 1966 years the great fire, which erupted in London, 80% consumed the building of the city with the Cathedral of St.. Paul. Before the crash was a "traditional" Gothic church, built as the other on a Latin cross. Were in it: the main nave, choir and presbytery, which consisted of long arm of the cross, and the transept as a lateral arm shorter. In the central place was the tower, and on both sides of the nave were located below the main nave side. The old cathedral was very sadly neglected. Roof przeciekał strong, and even happened that the main nave pędzono sheep through the market. A few months before that crash, a well-known architect Wrenowi be entrusted with the renovation of buildings.